/ Dictionary / Index C crimson: Meaning and Definition of Find definitions for: crim•son Pronunciation: (krim'zun, -sun), [key] — adj. deep purplish-red. sanguinary. —n. a crimson color, pigment, or dye. —v.t., v.i. to make or become crimson. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: crimson (Thesaurus) crimpy crimson clover Related Content Daily Word Quiz: wary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language