s, a, o, f, g, k, n, r, i
are letters that make 'insignia of rank'
sign, AN, si, insignia, INS, SI, rank, in, RA, IN, IA, Ra, In, Ni, Si, Ig
are words within 'insignia of rank'
1 possible definitions for 'insignia of rank'
Under this definition, insignia of rank is a noun and has the following properties:
'insignia of rank' can be a type of insignia.
'insignia of rank' can be a category of armed services, military machine, war machine, armed forces, military.