laugh可作动词和名词.
n.（名词）
1.The act of laughing.
笑
2.The sound of laughing; laughter.
笑的声音；笑声
3.Informal Something amusing,absurd,or contemptible; a joke:
【非正式用语】 笑话,笑柄：可笑的,荒诞的或可鄙的事情；笑话：
The solution they recommended was a laugh.
他们提出的解决办法简直是个笑话
4.Often laughs Informal Fun; amusement:
常作 laughs 【非正式用语】 消遣；玩乐：
decided to go along just for laughs.
决定一起去,只为了乐一乐
laughter
1.The act of laughing.
笑：笑的动作
2.The sound produced by laughing.
笑声：由笑发出的声音
3.Archaic A cause or subject for laughter.
【古语】 笑因,笑者：笑的原因或对象