Pronunciation enPR: ôr, IPA (key): /ɔr/ Audio (US)(file) Homophones: or, ore, o'er Noun Singular oar Plural oars (countable) An oar is a pole with a flat blade, used to row a boat. He pulled hard on the oar to make the boat go faster.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads