モワァ〜ンalso: もわぁーんMeanings1adverb, adverb taking the 'to' particlewhoosh; swishonomatopoeic or mimetic wordOnomatopoeic word for a soft, airy, or gentle whooshing sound, often used with と.風かぜがモワァ〜ンと吹ふき抜ぬけた。The wind whooshed through softly.