armband

English Thesaurus

1. a band worn around the upper arm (noun.artifact)

hypernym	:	band,
definition	:	a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body) (noun.artifact)

2. worn around arm as identification or to indicate mourning (noun.communication)

hypernym	:	visual signal,
definition	:	a signal that involves visual communication (noun.communication)