/ Dictionary / Index T ta: Meaning and Definition of Find definitions for: ta Pronunciation: (tä), [key] — interj. Brit. Slang. thank you. tā Pronunciation: (tä), [key] — n. the third letter of the Arabic alphabet. tā Pronunciation: (tä), [key] — n. the 16th letter of the Arabic alphabet. TA Pronunciation: [key] See transit authority. Ta Pronunciation: [key] — Symbol, Chem. tantalum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ta (Thesaurus) T, t Taal Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language