/ Thesaurus / G Synonyms of great year Find synonyms for: Noun1. great year, Platonic year, time period, period of time, periodusage: time required for one complete cycle of the precession of the equinoxes, about 25,800 yearsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language