/ Dictionary / Index B button-down: Meaning and Definition of Find definitions for: but•ton-down Pronunciation: (but'n-doun"), [key] — adj. (of a shirt collar) having buttonholes so it can be buttoned to the body of the shirt. (of a shirt) having a button-down collar. (esp. of attitudes, opinions, etc.) extremely conventional; unimaginative. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: button-down (Thesaurus) buttonbush button ear Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language