/ Thesaurus / F Synonyms of fourth year Find synonyms for: Adjective1. senior(prenominal), fourth-year, last (vs. first)usage: used of the fourth and final year in United States high school or college; "the senior prom"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language