/ Thesaurus / L Synonyms of lego Find synonyms for: Noun1. Lego, Lego set, plaything, toyusage: (trademark) a child's plastic construction set for making mechanical modelsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language