Pronunciation IPA (key): /ˈkjʊə̯riˌəʊ̯/ or /ˈkjɜːriˌəʊ̯/ or /ˈkjɔːriˌəʊ̯/ Audio (UK)(file) Noun Singular curio Plural curios (countable) A curio is an unusual and rare object that makes people curious.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads