badge

/bæʤ/

an emblem (a small piece of plastic or cloth or metal) that signifies your status (rank or membership or affiliation etc.)

中文释义：徽章；标志

Police officers wear a badge to show their authority and identification.

警察佩戴徽章以显示其权威和身份。

He earned a merit badge for his volunteer work in the community.

他因在社区的志愿工作获得了一枚荣誉徽章。