numeral, measure word, noun · a collective or gang of people; also used as a classifier for groups of people

那一伙人正在商量什么事情。

verb · to join together or act in collaboration

我们几个人合伙承包了这片果园。

noun, measure word · many; numerous; a large number of

他潜心钻研多年，此次所得研究成果甚夥。

noun · a person who shares an activity or belongs to a group; a partner

他是我的老伙计了。