umbrella vs military machine

umbrella and military machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbrella	Yes	Yes	No	No
military machine	Yes	No	No	No

umbrella (noun)	military machine (noun)
a formation of military planes maintained over ground operations or targets	the military forces of a nation
having the function of uniting a group of similar things
a lightweight handheld collapsible canopy

umbrella (adjective)	military machine (adjective)
covering or applying simultaneously to a number of similar items or elements or groups