/ Dictionary / Index S sizar: Meaning and Definition of Find definitions for: siz•ar Pronunciation: (sī'zur), [key] — n. (at Cambridge University and at Trinity College, Dublin) an undergraduate who receives maintenance aid from the college. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sizable size Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language