committee/kə'mɪtɪ/

n. a group of people who are chosen to make decisions, plans, etc.

n. [C] 委员会：[committee + v.单/复] The committee has/have decided to cancel the election. 委员会决定取消选举。

◇He is on the management committee. 他是管理委员会委员。

构词commit（承诺）+ t + ee（人）

同缀 referee