armed forces vs activated

armed forces is a noun but activated is not a noun.

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

armed forces (noun)	activated (noun)
the military forces of a nation

armed forces (adjective)	activated (adjective)
	rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
	(military) set up and placed on active assignment
	(of e.g. a molecule) made reactive or more reactive
	(of sewage) treated with aeration and bacteria to aid decomposition