ha

/HH AA1/
interjection
  1. 1

    A representation of laughter.

    โ€œHa, ha, ha! Thatโ€™s funny.โ€

  2. 2

    An exclamation of triumph or discovery.

    โ€œHa! Checkmate!โ€

  3. 3

    An exclamation of grief.

  4. 4

    A sound of hesitation: er, um.

interjection
  1. 1

    Said when making a vigorous attack.

Source: https://en.wiktionary.org/wiki/ha