Added 10 October 2026 mountaineer /ˌmaʊn.tɪnˈɪə̯(ɹ)/ noun Categories: PeopleRare Words In Latin: oribata Wiktionary noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about mountaineer at Wordnik → Where our words come from → Someone who climbs mountains. verb Climb mountains for pleasure as a sport. Related Words: climberclimbplaidedbackwoodsmanmounterflatlandermaroonermonkcraggerboondockerwild-man Back to today's word