arsenal vs armed forces

arsenal and armed forces both are nouns.

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

arsenal (noun)	armed forces (noun)
a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms	the military forces of a nation
a place where arms are manufactured
all the weapons and equipment that a country has