- A nonmoving part of a machine or power tool that supports a revolving part, such as the spindle of a lathe.头座：机器或动力工具上用于安装旋转部件的不能移动的部分，如车床的转轴
- Union College (Kentucky)
- Union College (Nebraska)
- Union College (Nebraska)
- Union College (New York)
- Union County College
- Uniondale
- unionise
- unionism
- unionisms
- unionist
- unionists
- unionize
- unionized
- unionizes
- unionizing
- union jack
- union label
- Union of Soviet Socialist Republics
- unions
- union shop
- union suit
- Union University
- Union University
- uniparous
- unipersonal