- 1 a small piece of metal or plastic, with a design or words on it, that a person wears to show that they belong to an organization, support something, have achieved something, have a particular rank, etc. a Girl Scout badge All employees have to wear name badges. compare button
- 2a small piece of metal that you carry or wear to prove who you are, used, for example, by police officers He pulled out a badge and said he was a cop.
- 3 badge of honor/courage (formal) something that you are proud of or that shows how brave you are He wore his working-class background like a badge of honor.