s, o, d, l, n, c, r, t, i, u are letters that make 'drill instructor'
OR, INS, instructor, RI, ill, inst, il, in, drill, CT, IL, IN, rill, tor, In, Ru, drill in, instruct are words within 'drill instructor'
1 possible definitions for 'drill instructor'
Under this definition, drill instructor is a noun and has the following properties:
drill master has the same meaning as drill instructor
'drill instructor' can be a type of noncommissioned officer, noncom, enlisted officer.
'drill instructor' can be a category of armed services, military machine, war machine, armed forces, military.