/ Dictionary / Index T tenner: Meaning and Definition of Find definitions for: ten•ner Pronunciation: (ten'ur), [key] — n. Informal. a 10-dollar bill. a 10-pound note. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tenner (Thesaurus) tennantite Tennessean Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language