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Thai alphabet
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The Thai alphabet (àkson thai) is used to write the Thai language and other minority languages in Thailand. It has forty-four consonants (phayanchaná), fifteen vowel symbols (sàrà) that combine into at least twenty-eight vowel forms, and four tone marks (wannayúk or wannayút).
The character set is an abugida, a writing system in which consonants include an inherent vowel sound.
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Encyclopedia
The Thai alphabet (àkson thai) is used to write the Thai language and other minority languages in Thailand. It has forty-four consonants (phayanchaná), fifteen vowel symbols (sàrà) that combine into at least twenty-eight vowel forms, and four tone marks (wannayúk or wannayút).
The character set is an abugida, a writing system in which consonants include an inherent vowel sound. The inherent vowel is described as an implied 'a' or 'o', below. Consonants are written horizontally from left to right, with vowels symbols arranged above, below, to the left or to the right of the corresponding consonant or in a combination of those positions.
Thai has its own set of Thai numerals which are based on the Hindu Arabic numeral system (tua lek thai), but the standard western Hindu-Arabic numerals (tua lek hindu arabik) are also commonly used.
History
The Thai alphabet is derived from the Old Khmer script (akchara khamen), which is a southern Brahmic style of writing called Vatteluttu. Vatteluttu was also commonly known as the Pallava script by scholars of Southeast Asian studies such as George Coedes.
According to tradition it was created in 1283 by King Ramkhamhaeng the Great .
Orthography
Thai letters do not have small and capital forms like the Roman alphabet. Texts are usually written with no space between words.
Minor pauses in sentences may be marked by a comma (chun lap hâk or lûk nám), and major pauses by a period (ma hàp phâk or chùt), but most often are marked by a blank space (wák). A bird's eye ? (ta kài), officially called (fong man), formerly indicated paragraphs, but is now obsolete.
A khomut ? can be used to mark the end of a chapter or document.
Thai writing also uses quotation marks (an-yá-prà-kàt) and parentheses (round brackets) (wong lép), but not square brackets or braces.
Alphabet listing
You will need a Unicode-capable browser and font that contains the Thai alphabet to view the Thai letters below.
Consonants
There are 44 consonants representing 21 distinct consonant sounds. Duplicate consonants represent different Sanskrit and Pali consonants pronounced identically in Thai (although the distinction between the consonants is retained in spoken Khmer). The consonants are divided into three classes — low (siang tam ), middle (siang klang) and high (siang sung) — which determine the tone of the following vowel. There are in addition four consonant-vowel combination characters not included in the tally of 44.
To aid learning, each consonant is traditionally associated with a Thai word that either starts with the same sound, or features it prominently. For example, the name of the letter ? is kho khai (? ???), in which kho is the sound it represents, and khai is a word which starts with the same sound and means "egg".
Two of the consonants, ? (kho khuat) and ? (kho khon), are not used in written Thai anymore, but still appear on many keyboards and in character sets. Some say that when the first Thai typewriter was developed by Edwin Hunter McFarland in 1892, there was simply no space for all characters, thus two had to be left out. Also, neither of these two letters correspond to a Sanskrit or Pali letter, and each of them, being a modified form of the letter that precedes it (compare ? and ?), has the same pronunciation and the same consonant class as the preceding letter. This makes them redundant. Set in 1890's Siam, a 2006 film titled in Thai: ??????? Flying Fire Person (in English: Dynamite Warrior), uses ? kho khon to spell ?? Person. Compare entry for ? in table below, where person is spelled ??.
Equivalents for romanisation are shown in the table below. Many consonants are pronounced differently at the beginning and at the end of a syllable. The entries in columns initial and final indicate the pronunciation for that consonant in the corresponding positions in a syllable. Where the entry is '-', the consonant may not be used to close a syllable. Where a combination of consonants ends a written syllable, only the first is pronounced; possible closing consonant sounds are limited to 'k', 'm', 'n', 'ng', 'p' and 't'.
Although an official standard for romanisation is the Royal Thai General System of Transcription (RTGS) defined by the Royal Thai Institute, many publications use different Romanisation systems. In daily practice, a bewildering variety of Romanisations are used, making it difficult to know how to pronounce a word, or to judge if two words (e.g. on a map and a street sign) are actually the same. For more precise information, an equivalent from the International Phonetic Alphabet (IPA) is given as well.
Each consonant is assigned to a "class" (low, middle, or high), which plays a role in determining the tone with which the syllable is pronounced.
| Symbol | Name | Royal Thai | IPA | Class | | Thai | RTGS (meaning) | Initial | Final | Initial | Final |
|---|
| ? | ? ??? | ko kai (chicken) | k | k | | | mid | | ? | ? ??? | kho khai (egg) | kh | k | | | high | | ? | ? ??? | kho khuat (bottle) [obsolete] | kh | k | | | high | | ? | ? ???? | kho khwai (water buffalo) | kh | k | | | low | | ? | ? ?? | kho khon (person) [obsolete] | kh | k | | | low | | ? | ? ????? | kho ra-khang (bell) | kh | k | | | low | | ? | ? ?? | ngo ngu (snake) | ng | ng | | | low | | ? | ? ??? | cho chan (plate) | ch | t | | | mid | | ? | ? ???? | cho ching (cymbals) | ch | - | | | high | | ? | ? ???? | cho chang (elephant) | ch | t | | | low | | ? | ? ??? | so so (chain) | s | t | | | low | | ? | ? ??? | cho choe (bush) | ch | - | | | low | | ? | ? ???? | yo ying (woman) | y | n | | | low | | ? | ? ??? | do cha-da (headdress) | d | t | | | mid | | ? | ? ???? | to pa-tak (goad, cattleprod spear) | t | t | | | mid | | ? | ? ??? | tho san-than (base) | th | t | | | high | | ? | ? ???? | tho nangmon-tho (character from Ramayana) | th | t | | | low | | ? | ? ??????? | tho phu-thao (elder) | th | t | | | low | | ? | ? ??? | no nen (novice monk) | n | n | | | low | | ? | ? ???? | do dek (child) | d | t | | | mid | | ? | ? ???? | to tao (turtle) | t | t | | | mid | | ? | ? ??? | tho thung (sack) | th | t | | | high | | ? | ? ???? | tho thahan (soldier) | th | t | | | low | | ? | ? ?? | tho thong (flag) | th | t | | | low | | ? | ? ??? | no nu (mouse) | n | n | | | low | | ? | ? ???? | bo baimai (leaf) | b | p | | | mid | | ? | ? ??? | po plaa (fish) | p | p | | | mid | | ? | ? ???? | pho phueng (bee) | ph | - | | | high | | ? | ? ?? | fo fa (lid) | f | - | | | high | | ? | ? ??? | pho phan (tray) | ph | p | | | low | | ? | ? ??? | fo fan (teeth) | f | p | | | low | | ? | ? ????? | pho sam-phao (sailboat) | ph | p | | | low | | ? | ? ??? | mo ma (horse) | m | m | | | low | | ? | ? ????? | yo yak (giant) | y | y | | | low | | ? | ? ???? | ro ruea (boat) | r | n | | | low | | ? | ? ??? | lo ling (monkey) | l | n | | | low | | ? | ? ???? | wo waen (ring) | w | w | | | low | | ? | ? ???? | so sala (pavilion) | s | t | | | high | | ? | ? ???? | so rue-si (hermit) | s | t | | | high | | ? | ? ???? | so suea (tiger) | s | t | | | high | | ? | ? ??? | ho hip (chest) | h | - | | | high | | ? | ? ???? | lo chu-la (kite) | l | n | | | low | | ? | ? ???? | o ang (basin) | * | - | | | mid | | ? | ? ????? | ho nok-huk (owl) | h | - | | | low |
* ? is a special case in that at the beginning of a word it is used as a silent initial for syllables that start with a vowel (all vowels are written relative to a consonant — see below). The same symbol is used as a vowel in non-initial position.
Vowels
Thai vowel sounds and diphthongs are written using a mixture of vowel symbols on a consonant base. Each vowel is shown in its correct position relative to a base consonant (indicated by a dash '–') and sometimes a final consonant as well (second dash). Note that vowels can go above, below, left of or right of the consonant, or combinations of these places. If a vowel has parts before and after the initial consonant, and the syllable starts with a consonant cluster, the split will go around the whole cluster.
The inherent vowels are in open syllables (CV) and in closed syllables (CVC). For example, ??? transcribes "road". There are a few exceptions in Pali loanwords, where the inherent vowel of an open syllable is . The circumfix vowels, such as ?–?? , encompass a preceding consonant with an inherent vowel. For example, is written ????, and "only" is written ?????.
Characters ? ?? (plus ? ??, which are obsolete and no longer used) are usually considered as vowels, the first being a short vowel sound, and the latter, long. As alphabetical entries, ? ?? follow ?, and themselves can be read as a combination of consonant and vowel, equivalent to ?? (short), and ???, (long) (and the obsolete pair as ??, ???) respectively. Moreover, ? can act as ?? as an integral part in many words mostly borrowed from Sanskrit such as ????? (kritna, not kruesana) ????? (rit, not ruet) ????? (krisada, not kruetsada), for example. It is also used to spell ?????? angrit English and ???????????? Prathet angrit England.
The pronunciation below is indicated by the International Phonetic Alphabet and the Romanisation according to the Royal Thai Institute as well as several variant Romanisations often encountered. A very approximate equivalent is given for various regions of English speakers and surrounding areas. A dash represents the position of a consonant cluster. Vowels that only exist in closed syllables either have one dash and an explicit consonant or they have two dashes, the first one representing the initial consonant and the latter representing the final.
| Symbol | Name | IPA | Royal | Variants | Sound | | – | implied a | | a | u | u in "nut" | | – – | implied o | | o | | oa in "boat" | | –?? | ro han * | | an | un | un in tun; same as -?? | | –??– | ro han * | | a | u | u in "nut"; same as -?- | | –??? | ro han with mo ma as closing consonant * | | am | um | um in "hum"; same as -? | | –?– | sara ua * | | ua | uar | ewe in "newer" | | –?? | sara ua with wo waen as closing consonant | | uai | uay | uoy in "buoy" | | –? | sara o | | o | or, aw | aw in "saw" | | –?? | sara o with yo yak as closing consonant | | oi | oy | oy in "boy" | | –? | sara a | | a | u | u in "nut" | | –? – | sara a in mai han-akat form | | a | u | u in "nut" | | –?? | sara a with yo yak as closing consonant | | ai | | i in "hi" | | –?? | sara ua | | ua | | ewe in "newer" | | –??? | sara ua | | ua | | ewe in "sewer" | | –? | sara a | | a | ah, ar, aa | a in "father" | | –?? | sara a with yo yak as closing consonant | | ai | aai, aay, ay | ye in "bye" | | –?? | sara a with wo waen as closing consonant | | ao | au | ow in "now" | | –? | sara am | | am | um | um in "sum" | | –? | sara i | | i | | y in "greedy" | | –?? | sara i with wo waen as closing consonant | | io | ew | ew in "new" | | –? | sara i | | i | ee, ii, y | ee in "see" | | –? | sara ue | | ue | eu, u, uh | u in French "du" (short) | | –? | sara ue | | ue | eu, u | u in French "dur" (long) | | –? | sara u | | u | oo | oo in "look" | | –? | sara u | | u | oo, uu | oo in "too" | | ?– | sara e | | e | ay, a, ae, ai, ei | a in "lame" | | ?–? – | sara e with mai taikhu | | e | | e in "neck" | | ?–? | sara e | | e | eh | e in "neck" | | ?–? | sara oe with yo yak as closing consonant | | oei | oey | u in "burn" + y in "boy" | | ?–? | sara oe | | oe | er, eu, ur | u in "burn" | | ?–?? | sara oe | | oe | eu | e in "the" | | ?–? – | sara oe | | oe | eu, u | e in "the" | | ?–? | sara e with wo waen as closing consonant | | eo | eu, ew | ai + ow in "rainbow" | | ?–? | sara ao | | ao | aw, au, ow | ow in "cow" | | ?–?? | sara o | | o | orh, oh, or | o in "not" | | ?–?? | sara ia | | ia | ear, ere, ie | ea in "ear" | | ?–??? | sara ia | | ia | iah, ear, ie | ea in "ear" with
glottal stop | | ?–??? | sara ia with wo waen as closing consonant | | iao | eaw, iew, iow | io in "trio" | | ?–?? | sara uea | | uea | eua, ua, ue | ure in "pure" | | ?–??? | sara uea | | uea | eua, ua | ure in "pure" | | ?– | sara ae | | ae | a | a in "ham" | | ?–? | sara ae | | ae | aeh, a | a in "at" | | ?–? – | sara ae with mai taikhu | | ae | aeh, a | a in "at" | | ?–? | sara ae with wo weaen as closing consonant | | aeo | aew, eo | a in "ham" + ow in "low" | | ?– | sara o | | o | or, oh, ô | o in "go" | | ?–? | sara o | | o | oh | o in "poke" | | ?– | sara ai mai muan ** | | ai | ay, y | i in "I" | | ?– | sara ai mai malai | | ai | ay, y | i in "I" | | ? | ro rue (short) * | | rue | ru, ri | ri in "Krishna" | | ?? | ro rue (long) * | | rue | ruu | | | ? | lo lue (short) * | | lue | lu, li | li in "Lima" | | ?? | lo lue (long) * | | lue | lu | |
* These are semi-vowels or diphthongs written with consonant symbols.
** Only 20 Thai words use sara ai mai muan. Other words use one of the // variants.
Diacritics
Diacritics are used with the Thai alphabet to indicate modifications of the values of the letters.
Thai is a tonal language, and the script gives full information on the tones. Tones are realised in the vowels, but indicated in the script by a combination of the class of the initial consonant (high, mid or low), vowel length (long or short), closing consonant (unvoiced-plosive or voiced-sonorant) and sometimes one of four tone marks. The names and signs of the tone marks are derived from the numbers one, two, three and four in an Indic language. The rules for denoting tones are shown in the following chart:
| Symbol | Name | Syllable composition and initial consonant class | | Thai | RTGS | Vowel and final | High | Mid | Low |
|---|
| | (?????) | (none) | long vowel or vowel plus sonorant | rising | mid | mid | | | (?????) | (none) | long vowel plus plosive | low | low | falling | | | (?????) | (none) | short vowel at end or plus plosive | low | low | high | | –? | ?????? | mai ek | any | low | low | falling | | –? | ????? | mai tho | any | falling | falling | high | | –? | ?????? | mai tri | any | - | high | - | | –? | ???????? | mai chattawa | any | - | rising | - |
"None", that is, no tone marker, is used with the base accent (?????????, pheun siang). Mai tri and mai chattawa are only used with mid-class consonants.
Two consonant characters (not diacritics) are used to modify the tone:
- ? ?? ho nam, leading ho. A silent, high-class ? "leads" low-class nasal consonants (?, ?, ? and ?) and non-plosives (?, ?, ? and ?), which have no corresponding high-class phonetic match, into the tone properties of a high-class consonant. In polysyllabic words, an initial mid- or high-class consonant with an implicit vowel similarly "leads" these same low-class consonants into the higher class tone rules, with the tone marker borne by the low-class consonant.
- ? ?? o nam, leading o. In four words only, a silent, mid-class ? "leads" low-class ? into mid-class tone rules: ???? (ya, don't) ???? (yak, desire) ????? (yang, yet) ???? (yu, stay). Note all four have long-vowel, low-tone siang ek, but ????, a dead syllable, needs no tone marker, but the three live syllables all take mai ek.
Exceptions where words are spelled with one tone but pronounced with another often occur in informal conversation (notably the pronouns ??? chan and ??? khao, which are both pronounced with a high tone rather than the rising tone indicated by the script). Generally, when such words are recited or read in public, they are pronounced as spelled.
Other diacritics are used to indicate short vowels and silent consonants:
- Mai taikhu means "stick that climbs and squats". It is a miniature Thai numeral 8 ? and is informally called mai lek paet "stick #8". Mai taikhu is used only with sara e and sara ae in closed syllables.
- Thanthakhat means "executioner's axe"; karan means "canceled".
| Symbol | Name | Meaning | | Thai | RTGS |
|---|
| –? | ????????? | mai taikhu | shortens vowel | | –?? | ???????, ???????? | thanthakhat, karan | indicates silent letter |
Other symbols
| Symbol | Name | Meaning | | Thai | RTGS |
|---|
| ? | ????????? | paiyaan noi | preceding word is abbreviated | |
| ??? | ????????? | paiyaan yai | etc. | | ? | ?????? | mai yamok | preceding word or phrase is repeated |
Sanskrit and Pali
The Thai script (like all Indic scripts) uses a number of modifications to write Sanskrit and related languages (in particular, Pali). Pali is very closely related to Sanskrit and is the liturgical language of Thai Buddhism. In Thailand, Pali is written and studied using a slightly modified Thai script. The main difference is that each consonant is followed by an implied short a, not the 'o', or '?' of Thai: this short a is never omitted in pronunciation, and if the vowel is not to be pronounced, then a specific symbol must be used, the pinthu ?? (a solid dot under the consonant). This means that sara a is never used when writing Pali, because it is always implied. For example, namo is written ???? in Thai, but in Pali it is written as ???, because the ?? is redundant. The Sanskrit word 'mantra' is written ????? in Thai (and therefore pronounced mon), but is written ?????? in Sanskrit (and therefore pronounced mantra). When writing Pali, only 33 consonants and 12 vowels are used.
This is an example of a Pali text written using the Thai Sanskrit orthography: ???? ?????????????? ???? []. Written in modern Thai orthography, this becomes ??????? ????????????? ?????? arahang sammasamphuttho phakhawa.
In Thailand, Sanskrit is read out using the Thai values for all the consonants (so ? is read as kha and not [ga]), which makes Thai spoken Sanskrit incomprehensible to sanskritists not trained in Thailand. The Sanskrit values are used in transliteration (without the diacritics), but these values are never actually used when Sanskrit is read out loud in Thailand. The vowels used in Thai are identical to Sanskrit, with the exception of ?, ??, ?, and ??, which are read using their Thai values, not their Sanskrit values. Sanskrit and Pali are not tonal languages, but in Thailand, the Thai tones are used when reading these languages out loud.
In the tables in this section, the Thai value (transliterated according to the Royal Thai system) of each letter is listed first, followed by the IAST value of each letter in square brackets. Remember that in Thailand, the IAST values are never used in pronunciation, but only sometimes in transcriptions (with the diacritics omitted). This disjoint between transcription and spoken value explains the romanisation for Sanskrit names in Thailand that many foreigners find confusing. For example, ?????????? is romanised as Suvarnabhumi, but pronounced su-wan-na-pum. ??????????? is romanised as Srinagarindra but pronounced si-nakha-rin.
Plosives (???? )
Plosives (also called stops) are listed in their traditional Sanskrit order, which corresponds to Thai alphabetical order from ? to ? with three exceptions: in Thai, high-class ? is followed by two obsolete characters with no Sanskrit equivalent, high-class ? and low-class ?; low-class ? is followed by sibilant ? (low-class equivalent of high-class sibilant ? that follows ? and ?.) The table gives the Thai value first, and then the IAST value in square brackets.
| class | unaspirated
unvoiced | aspirated | voiced | aspirated
voiced | nasal | | velar | ? kà [] | ? khà [] | ? khá [] | ? khá [] | ? ngá [] | | palatal | ? cà [] | ? chà [] | ? chá [] | ? chá [] | ? yá [] | | retroflex | ? tà [] | ? thà [] | ? thá [] | ? thá [] | ? ná [] | | dental | ? tà [] | ? thà [] | ? thá [] | ? thá [] | ? ná [] | | labial | ? pà [] | ? phà [] | ? phá [] | ? phá [] | ? má [] | tone class | M | H | L | L | L |
While letters are listed here according to their class in Sanskrit, Thai has lost the distinction between many of the consonants. So, while there is a clear distinction between ? and ? in Sanskrit, in Thai these two consonants are pronounced identically (including tone). Likewise, Thais are unable to tell the difference between the retroflex and dental classes, because Thai has no retroflex consonants and all the retroflex consonants are in fact pronounced as if they are dental: thus ? is pronounced like ?, and ? is pronounced like ?, and so forth.
The Sanskrit unaspirated unvoiced plosives are pronounced as unaspirated unvoiced, while the Sanskrit aspirated, voiced, and aspirated voiced plosives are pronounced as aspirated unvoiced, except in the retroflex class where the Sanskrit voiced and aspirated voiced plosive are pronounced as unaspirated unvoiced. None of the Sanskrit plosives are pronounced as the Thai voiced plosives.
Non-plosives (????? )
Semivowels and liquids (??????? king sara branch vowels") come in Thai alphabetical order after ?, the last of the plosives. The term ????? awak means "without a break"; that is, without a plosive.
| series | symbol | value | related vowels |
|---|
| palatal | ? | ya [yá] | ?? and ?? |
| retroflex | ? | ra [rá] | ? and ?? |
| dental | ? | la [lá] | ? and ?? |
| labial | ? | wa [wá] | ?? and ?? |
Sibilants (?????????)
?????????, pronounced ???????? (siat saek), meaning inserted sound(s), follow the semi-vowel ? in alphabetical order.
| series | symbol | value |
|---|
| palatal | ? | sà [sa] |
| retroflex | ? | sà [a] |
| dental | ? | sà [sa] |
Like Sanskrit, Thai has no voiced siblant (so no 'z' or 'zh'). In modern Thai, the distinction between the three high-class consonants has been lost and all three are pronounced 'sà'; however, foreign words with an sh-sound may still be transcribed as if the Sanskrit values still hold (e.g., ang-grit ?????? for English instead of ??????).
- ? ???? (so sala) leads words, as in its example word, ????. The digraph ??? (Indic sri) is regularly pronounced ?? (si), as in Sisaket Province, Thai: ????????.
- ? ???? (so rue-si) may only lead syllables within a word, as in its example, ????, or to end a syllable as in ???????? Sisaket and ?????? Anggrit English.
- ? ???? (so suea) spells native Thai words that require a high-class /s/, as well as naturalized Pali/Sanskrit words, such as ???? in Thetsakan Sat: ?????????? (???-??-???-???), formerly ????.
- ? ??? (so so), which follows the similar-appearing ? in Thai alphabetical order, spells words requiring a low-class /s/, as does ?? + vowel.
- ??, as in the heading of this section, ????????? (pronounced ???????? siat saek), when accompanied by a vowel (implicit in ??? (?? song an element in forming words used with royalty; a semivowel in ???? (??? suang chest, heart); or explicit in ???? (??? sigh sand). Exceptions to ?? + vowel = /s/ are the prefix ???- (equivalent to tele- far, pronounced ???? to-ra), and phonetic re-spellings of English tr- (as ??? (trae) meaning trumpet, with the latter respelled phonetically as ????????.) ?? is otherwise pronounced as two syllables ????-, as in ????? (??????? to-ra-man to torment.
Voiced h (??????????)
?, a high-class consonant, comes next in alphabetical order, but its low-class equivalent, ?, follows similar-appearing ? as the last letter of the Thai alphabet. Like modern Hindi, the voicing has disappeared, and the letter is now pronounced like English 'h'. Like Sanskrit, this letter may only be used to start a syllable, but may not end it. (A popular beer is romanized as Singha, but in Thai is ?????, with a mai karan on the ?; correct pronunciation is "sing", but foreigners to Thailand typically say "sing-ha".)
Vowels
Thai Sanskrit has only 12 vowels.
| symbol | value |
|---|
| ? | a [a] |
| ?? | a [a] |
| ?? | i [i] |
| ?? | i [i] |
| ?? | u [u] |
| ?? | u [u] |
| ?? | e [e] |
| ?? | o [o] |
| ? | ru [] |
| ?? | ru [] |
| ? | lu [] |
| ?? | lu [] |
All consonants have an inherent 'a' sound, and therefore there is no need to use the ? symbol when writing Sanskrit. The Thai vowels ??, ??, ??, and so forth, are not used in Sanskrit. The zero consonant, ?, is unique to the Indic alphabets descended from Khmer. When it occurs in Sanskrit, it is always the zero consonant and never the vowel o []. Its use in Sanskrit is therefore to write vowels that cannot be otherwise written alone: e.g., ?? or ??. When ? is written on its own, then it is a carrier for the implied vowel, a (equivalent to ?? in Thai).
The vowels ?? and ?? occur in Sanskrit, but only as the combination of the pure vowels sara a ?? or sara i ?? with nikhahit ??.
Other symbols
There are a number of additional symbols only used to write Sanskrit or Pali, and not used in writing Thai.
Nikhahit ??????? (anusvara)
In Sanskrit, the anusvara indicates that the preceding vowel be nasalised. In Thai this is written as an open circle above the consonant. Nasalisation does not occur in Thai, therefore, a nasal consonant is always substituted: e.g. ?? , is pronounced as ??? tang by Thai sanskritists. If nikhahit occurs before a consonant, then Thai uses a nasal consonant of the same class: e.g. ????????? [] is read as ???????? san-si-ki-ta (The ? following the nikhahit is a dental class consonant, therefore the dental class nasal consonant ? is used). For this reason, it has been suggested that in Thai, nikhahit should be listed as a consonant. Nikhahit ?????? occurs as part of the Thai vowels sara am ?? and sara ue ??.
Pinthu ????? (virama)
??
Because the Thai script is an abugida, a symbol (equivalent to virama in devanagari) needs to be added to indicate that the implied vowel is not to be pronounced. This is the pinthu, which is a solid dot below the consonant.
Yamakkan ????????
??
Yamakkan is an obsolete symbol used to mark the beginning of consonant clusters: e.g. ???????? phramana []. Without the yamakkan, this word would be pronounced pharahamana [] instead. This is a feature unique to the Thai script (other Indic scripts use a combination of ligatures, conjuncts or virama to convey the same information). The symbol is obsolete because pinthu may be used to achieve the same effect: ????????.
Visarga
The means of recording visarga (final voiceless 'h') in Thai has been lost.
Thai in Unicode
The Unicode range for Thai is U+0E00–U+0E7F. This area is a verbatim copy of the older TIS-620 character set which encodes the vowels ? ? ? ? ? before the consonants they follow, and thus is the only Unicode script using visual order instead of logical order. Grey areas indicate non-assigned code points.
See also
External links
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- Freeware for the Windows operating system
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- Transliterations for , , and , by Richard Wordingham
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