1 N-COUNT 臂章;袖标;臂带 An armband is a band of fabric that you wear round your upper arm in order to show that you have an official position or belong to a particular group. Some people also wear a black armband to show that a friend or relation has died. 臂章;袖标;臂带

2 N-COUNT [usually plural] （用于学游泳的）充气臂圈，救生臂环 Armbands are plastic rings filled with air that people who are learning to swim wear on their upper arms to help them float. （用于学游泳的）充气臂圈，救生臂环 [mainly British]