butterfly 2023.03.13 butterflyとは 意味・定義・例文 Noun 名詞 バタフライ US /ˈbʌtərˌflaɪ/ UK /ˈbʌtəflaɪ/ 1. an insect with two pairs of brightly colored wings, distinguished from moths 蝶 Several butterflies are flying among the flowers.