名詞 ha-ha:

1. a loud laugh that sounds like a horse neighing
   同義詞：hee-haw, horselaugh, haw-haw
2. a ditch with one side being a retaining wall; used to divide lands without defacing the landscape
   同義詞：sunk fence, haw-haw

ha-ha

n.（名詞）
A sound made in imitation of laughter.
哈哈：模仿發(fā)笑的聲音
ha-ha Slang An instance of amusement. Often used in the plural:
ha-ha 【俚語】 有趣的事情，常用復數(shù)形式：
例句：
drove around the baseball field at midnight just for ha-has; a party that was a real ha-ha.
就為了找樂，半夜里開車繞著棒球場轉(zhuǎn)；非常有意思的一個聚會

interj.（感嘆詞）
Used to express amusement or scorn.
用來表示戲謔或嘲諷

ha-ha
ha-ha 2

n.（名詞）
A moat, walled ditch, or hedge sunk in the ground to serve as a fence without impairing the view or scenic appeal.
暗墻；隱籬：用來作柵欄，但又不阻礙視線或景觀的護城河，或由墻圍住的溝或陷入地中的籬笆

來源：
French [perhaps as an exclamation of surprise]
法語 [可能表示驚呼]