/ Dictionary / Index T tall one: Meaning and Definition of Find definitions for: tall' one" Pronunciation: [key] — Informal. Informal. a beverage, esp. an alcoholic drink, in a tall glass. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tall oil tallow Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language