In poetry, homophony is often used to create a play on words.

在诗歌中，同音异义常用于制造文字游戏。

Most of the comedians jokes involved a play on words.

喜剧演员的笑话大多是一语双关.

A pun is a play on words, either on different senses of the same word or on the similar sense or sound of different words.

双关语是指利用同词不同义或是同音不同词来制造文字游戏的一种修辞方式。