/ Thesaurus / O Synonyms of o'er Find synonyms for: Adverb1. over, o'erusage: throughout a period of time; "stay over the weekend"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language