/ Dictionary / Index B besmirch: Meaning and Definition of Find definitions for: be•smirch Pronunciation: (bi-smûrch'), [key] — v.t. to soil; tarnish; discolor. to detract from the honor or luster of: to besmirch someone's good name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: besmirch (Thesaurus) besmear besom Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language