/ Dictionary / Index C corroborate: Meaning and Definition of Find definitions for: cor•rob•o•rate Pronunciation: (v.ku-rob'u-rāt"adj.ku-rob'ur-it), [key] — v., adj. -rat•ed, -rat•ing, —v.t. to make more certain; confirm: He corroborated my account of the accident. —adj. confirmed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: corroborate (Thesaurus) corroborant corroboration Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language