interj. 哈哈

n. 哈哈

vi. 哈哈

Haw-haw \Haw-haw"\ (h[add]*h[add]), n. [Duplication of haw a
hedge.]
1. See {Ha-ha}.

2. a loud laugh that sounds like a horse neighing. [WordNet
sense 1]

Syn: hee-haw, horselaugh, ha-ha.
[WordNet 1.5]

3. a sunken fence (so as not to interfere with the view).
[WordNet sense 3]

Syn: haha.
[WordNet 1.5]

Ha-ha \Ha-ha"\ (h[aum]*h[aum]"), n. [See {Haw-haw}.]
A sunk fence; a fence, wall, or ditch, not visible till one
is close upon it. [Written also {haw-haw}.]