/ Thesaurus / J Synonyms of june 21 Find synonyms for: Noun1. summer solstice, June 21, midsummer, solsticeusage: June 21, when the sun is at its northernmost pointWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language