Heterogram
Encyclopedia
A heterogram is a word, phrase, or sentence in which no letter
of the alphabet occurs more than once.
An isogram
, in which all letters occur an equal number of times, is the same as a heterogram when each letter occurs once.
A heterogram may be distinguished from a pangram
(a holoalphabetic sentence), which uses all of the letters of the alphabet (possibly more than once). A perfect heterogram is, however, the same as a perfect pangram, since both consist of all letters of the alphabet with each represented exactly once.
Abjad
s and abugida
s, in which only the consonants are represented in the basic graphemes, have a naturally high incidence of heterograms.
Berkowitz, capsuling, carpeting, certainly, clavering, coxalgies, cravingly, expulsing, flowchart, franticly, interplay, lacewings, lawyering, neuralgic, overmatch, packeting, paltering, panegyric, parceling, parleying, pecuniary, picayunes, preacting, prelaunch, privately, puckering, racketing, repacking, replacing, replating, replaying, sluiceway, Spaulding, squawking, squeaking, squealing, traveling, unshapely, vectorial.
Letter (alphabet)
A letter is a grapheme in an alphabetic system of writing, such as the Greek alphabet and its descendants. Letters compose phonemes and each phoneme represents a phone in the spoken form of the language....
of the alphabet occurs more than once.
An isogram
Isogram
An isogram is a logological term for a word or phrase without a repeating letter. It is also used by some to mean a word or phrase in which each letter appears the same number of times, not necessarily just once....
, in which all letters occur an equal number of times, is the same as a heterogram when each letter occurs once.
A heterogram may be distinguished from a pangram
Pangram
A pangram , or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Pangrams have been used to display typefaces, test equipment, and develop skills in handwriting, calligraphy, and keyboarding...
(a holoalphabetic sentence), which uses all of the letters of the alphabet (possibly more than once). A perfect heterogram is, however, the same as a perfect pangram, since both consist of all letters of the alphabet with each represented exactly once.
Abjad
Abjad
An abjad is a type of writing system in which each symbol always or usually stands for a consonant; the reader must supply the appropriate vowel....
s and abugida
Abugida
An abugida , also called an alphasyllabary, is a segmental writing system in which consonant–vowel sequences are written as a unit: each unit is based on a consonant letter, and vowel notation is obligatory but secondary...
s, in which only the consonants are represented in the basic graphemes, have a naturally high incidence of heterograms.
9 letters
Berkowitz, capsuling, carpeting, certainly, clavering, coxalgies, cravingly, expulsing, flowchart, franticly, interplay, lacewings, lawyering, neuralgic, overmatch, packeting, paltering, panegyric, parceling, parleying, pecuniary, picayunes, preacting, prelaunch, privately, puckering, racketing, repacking, replacing, replating, replaying, sluiceway, Spaulding, squawking, squeaking, squealing, traveling, unshapely, vectorial.