/ Dictionary / Index T TN: Meaning and Definition of Find definitions for: TN Pronunciation: [key] Tennessee (approved esp. for use with zip code). Tn Pronunciation: [key] — Symbol, Chem. thoron. tn. Pronunciation: [key] ton. town. train. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tn (Thesaurus) TMV TNB Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language