A badge is a piece of metal, cloth or plastic which you wear or carry to show that you work for a particular organization, or that you have achieved something.
双语例句
例：
a police officer's badge.
警官的徽章。
2.?[C 可数名词] （表明支持对象的）徽章
A badge is a small piece of metal or plastic which you wear in order to show that you support a particular movement, organization or person. You fasten a badge to your clothes with a pin.