Entry
  1. Adverb (fukushi), Suru verb

    gasp; pant

    Onomatopoeic or mimetic word

    泳ぎ手は頭を上げて、はあはあと息を吸った。
    The swimmer raised his head and gasped for breath.

Also written ハアハアはあはあハーハーはぁはぁ

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