/ Thesaurus / H Synonyms of homo erectus Find synonyms for: Noun1. Homo erectus, homo, man, human being, humanusage: extinct species of primitive hominid with upright stature but small brain; "Homo erectus was formerly called Pithecanthropus erectus"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language