captain vs armed forces

captain and armed forces both are nouns.

Word	Noun	Adjective	Verb	Adverb
captain	Yes	No	Yes	No
armed forces	Yes	No	No	No

captain (noun)	armed forces (noun)
a dining-room attendant who is in charge of the waiters and the seating of customers	the military forces of a nation
the pilot in charge of an airship
the naval officer in command of a military ship
an officer who is licensed to command a merchant ship
a policeman in charge of a precinct
an officer holding a rank below a major but above a lieutenant
the leader of a group of people

captain (verb)	armed forces (verb)
be the captain of a sports team