tank vs military machine

tank and military machine both are nouns.

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

tank (noun)	military machine (noun)
a large (usually metallic) vessel for holding gases or liquids	the military forces of a nation
an enclosed armored military vehicle; has a cannon and moves on caterpillar treads
a freight car that transports liquids or gases in bulk
a cell for violent prisoners
as much as a tank will hold

tank (verb)	military machine (verb)
treat in a tank
consume excessive amounts of alcohol
store in a tank by causing (something) to flow into it