grade insignia

English Thesaurus

1. V-shaped sleeve badge indicating military rank and service (noun.communication)

hypernym	:	badge,
definition	:	an emblem (a small piece of plastic or cloth or metal) that signifies your status (rank or membership or affiliation etc.) (noun.communication)

domain category	:	armed forces, armed services, military, military machine, war machine,
definition	:	the military forces of a nation (noun.group)