voluntary vs armed services

voluntary and armed services both are nouns.

Word	Noun	Adjective	Verb	Adverb
voluntary	Yes	Yes	No	No
armed services	Yes	No	No	No

voluntary (noun)	armed services (noun)
composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance	the military forces of a nation
(military) a person who freely enlists for service

voluntary (adjective)	armed services (adjective)
of your own free will or design; done by choice; not forced or compelled
controlled by individual volition