/ Thesaurus / Y Synonyms of yuri alekseyevich gagarin Find synonyms for: Noun1. Gagarin, Yuri Gagarin, Yuri Alekseyevich Gagarinusage: Soviet cosmonaut who in 1961 was the first person to travel in space (1934-1968)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language