/ Dictionary / Index Y yesteryear: Meaning and Definition of Find definitions for: yes•ter•year Pronunciation: (yes'tur-yēr', -yēr"), [key] — n. last year. the recent years; time not long past. —adv. during time not long past. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: yesteryear (Thesaurus) yesterweek yestreen Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language