/ Dictionary / Index Q quater: Meaning and Definition of Find definitions for: quat•er Pronunciation: (kwat'ur), [key] — adv. (in prescriptions) four times. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quat. quatercentenary Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language