What is the meaning of badge?

noun

• An emblem (a small piece of plastic or cloth or metal) that signifies your status (rank or membership or affiliation etc.. )
  • usage: "they checked everyone's badge before letting them in"
• Any feature that is regarded as a sign of status (a particular power or quality or rank. )
  • usage: "wearing a tie was regarded as a badge of respectability"

verb

• Put a badge on.
  • usage: "The workers here must be badged"