moo 2022.12.06 mooとは 意味・定義・例文 Noun 名詞 1. the noise that a cow makes モー Cows make a higher pitched, louder moooooooooos to express "Where you are?" Verb 動詞 1. make the long low sound of a cow モーと鳴く Cows moo for a number of reasons, typically for expressing "I'm hungry" or "Help me"