The term 'Military Rank Indicator' refers to the symbols and markings used to denote the rank of a military officer. The two crossword solutions for this term are 'STRIPE' and 'INSIGNIA'. A STRIPE is a narrow band of fabric, usually worn on the sleeve of a uniform, that indicates the rank of the wearer. INSIGNIA is a more general term that refers to any type of badge or emblem that is used to signify rank. Both stripes and INSIGNIA are used in the military to indicate rank and authority.