pigeonhole /ˈpɪdʒɪnˌhəʊl/ (also pigeon-hole) ( pigeonholing, pigeonholed, pigeonholes )

• 1. 

  N-COUNT A pigeonhole is one of the sections in a frame on a wall where letters and messages can be left for someone, or one of the sections in a writing desk where you can keep documents. (墙上挂的) 信件架; (书桌上摆放的) 文件格

• 2. 

  V-T To pigeonhole someone or something means to decide that they belong to a particular class or category, often without considering all their qualities or characteristics. (常指不考虑所有特性地) 给…分类

  例：

  He felt they had pigeonholed him.

  他感觉他们已经将他归入某一类了。