- TA is an abbreviation for Teacher's Assistant.
An example of a TA is someone who helps a teacher grade papers.
- Ta is defined as a British expression for saying thank you.
An example of ta is how one would respond to a friend who brought them a glass of wine.
ta definition by Webster's New World
Origin: ; from t(its) and a(ss)
ta definition by American Heritage Dictionary
interjection Chiefly British
Origin: Baby-talk alteration of thank you.
ta - Computer Definition
Synonymous with ISDN modem. An interface adapter for connecting one or more non-ISDN devices (e.g., telephone sets or PCs) to an ISDN network. A TA is ISDN data communications equipment (DCE) that performs protocol conversion for equipment that is not ISDN-compatible. See also DCE, ISDN, modem, and protocol.