badge (n.)

"token worn to indicate the wearer's occupation, preference, etc.," especially "device worn by servants or followers to indicate their allegiance," from Anglo-French bage (mid-14c.) or Anglo-Latin bagis, plural of bagia "emblem," all of unknown origin. Figurative sense "mark or token" of anything is by 1520s.

updated on March 29, 2017

Definitions of badge from WordNet
badge (n.)
an emblem (a small piece of plastic or cloth or metal) that signifies your status (rank or membership or affiliation etc.);
they checked everyone's badge before letting them in
badge (n.)
any feature that is regarded as a sign of status (a particular power or quality or rank);
wearing a tie was regarded as a badge of respectability
badge (v.)
put a badge on;
The workers here must be badged
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