mountaineer

mastery
UK /ˌmaʊn.tɪnˈɪə̯(ɹ)/ US /ˌmaʊn.tɪnˈɪɹ/nounverb

card 1 of 10 · synonym

Which word is closest in meaning to 'mountaineer' in this sentence?

She is an experienced mountaineer who has climbed Everest twice.