/ Dictionary / Index C colloquial: Meaning and Definition of Find definitions for: col•lo•qui•al Pronunciation: (ku-lō'kwē-ul), [key] — adj. characteristic of or appropriate to ordinary or familiar conversation rather than formal speech or writing; informal. involving or using conversation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: colloquial (Thesaurus) colloq. colloquialism Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language