• A tad, a small amount, or a bit or piece of something.
• Tad (band)
  Tad (band)
  Tad was an American grunge band from Seattle, Washington led by Tad Doyle. Among the first of the many bands which came out of Seattle in the grunge era, Tad was notable for the fact that its music had a noticeable 1970s metal influence, rather than the punk which influenced most other grunge bands...
  
  , a Seattle band
• A male given name
  Given name
  A given name, in Western contexts often referred to as a first name, is a personal name that specifies and differentiates between members of a group of individuals, especially in a family, all of whose members usually share the same family name...
  
  
• Tadcaster
  Tadcaster
  Tadcaster is a market town and civil parish in the Selby district of North Yorkshire, England. Lying on the Great North Road approximately east of Leeds and west of York. It is the last town on the River Wharfe before it joins the River Ouse about downstream...
  
  , a town in the United Kingdom.
• Former UK scuba divers' slang for "tadpole" (type of cylinder)
• The Welsh
  Welsh language
  Welsh is a member of the Brythonic branch of the Celtic languages spoken natively in Wales, by some along the Welsh border in England, and in Y Wladfa...
  
   word for 'dad'.

TAD as an acronym

• The internet shorthand for "Thanks, all done."
• Technical Aid to the Disabled
  Technical Aid to the Disabled
  Technical Aid to the Disabled NSW is a New South Wales organisation established in 1975 to provide their technical skills to assist people with disabilities...
  
  , Australian charity
• Technical Audio Devices, a brand of high-end professional speakers by Pioneer
  Pioneer Corporation
  is a multinational corporation that specializes in digital entertainment products, based in Kawasaki, Kanagawa, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop...
  
  
• Telephone Answering Device
• Technology Aware Design
  Technology aware design
  Technology Aware Design is a research program that started in 2001 at imec, Leuven, Belgium. It anticipates the end of the traditional "happy scaling" paradigm, where CMOS technology and CMOS design evolved on formally separate tracks, the interface between the two being standard cell, or SPICE...
  
  
• Tax Allocation District
  Tax Allocation District
  A tax-allocation district , also known as tax increment financing, is a defined area where real estate property tax monies gathered above a certain threshold for a certain period of time to be used a specified improvement. The funds raised from a TAD are placed in a tax-free bond where the money...
  
  
• Temporary Assigned Duty
  TDY
  A temporary duty assignment , also known as "temporary additional duty" , "temporary duty travel" or "temporary duty" , refers to a United States Government employee travel assignment at a location other than the employee's permanent duty station. They are usually of relatively short duration,...
  
  
• The Asian Dynasties, a second expansion pack to the popular RTS game, Age of Empires 3 and The War Chiefs set between the late 15th century and the mid 19th century
• Thoracic aortic dissection
  Aortic dissection
  Aortic dissection occurs when a tear in the inner wall of the aorta causes blood to flow between the layers of the wall of the aorta and force the layers apart. The dissection typically extends anterograde, but can extend retrograde from the site of the intimal tear. Aortic dissection is a medical...
  
  
• Tricyclic antidepressant
  Tricyclic antidepressant
  Tricyclic antidepressants are heterocyclic chemical compounds used primarily as antidepressants. The TCAs were first discovered in the early 1950s and were subsequently introduced later in the decade; they are named after their chemical structure, which contains three rings of atoms...
  
   drug
• The pen name of American cartoonist Thomas A. Dorgan
  Thomas A. Dorgan
  Thomas Aloysius Dorgan also known as Tad Dorgan, was an American cartoonist who signed his drawings as Tad. He is known for his cartoon panel Indoor Sports and the many words and expressions he added to the language.He was born in San Francisco on April 29, 1877...
  
  
• Ticket Attachment Device, a colored plastic zip tie used to attach a lift ticket to a skiers clothing. Has largely replaced the term "wicket", which referred to a bent metal device

See also

• Target Acquisition and Designation System, Pilot Night Vision System
• Text Adventure Development System
  TADS
  Text Adventure Development System is a prototype-based domain-specific programming language and set of standard libraries for creating interactive fiction games.-History:...