/ Thesaurus / I Synonyms of intercalary year Find synonyms for: Noun1. leap year, intercalary year, 366 days, bissextile year, year, twelvemonth, yrusage: in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language