英汉词典

1. 徽章，证章（美国英语通常用button指金属小圆徽章）
    A badge is a piece of metal or cloth which you wear to show that you belong to an organization or support a cause. American English usually uses button to refer to a small round metal badge.

2. 标志；标记；象征
    Any feature which is regarded as a sign of a particular quality can be referred to as a badge .

    e.g. Being a Communist was a badge of honour for thousands of trade union activists.
           对数千工会积极分子来说，成为共产党员是荣誉的象征。