phalanx vs war machine

phalanx and war machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
phalanx	Yes	No	No	No
war machine	Yes	No	No	No

phalanx (noun)	war machine (noun)
any of the bones of the fingers or toes	the military forces of a nation
a body of troops in close array
any closely ranked crowd of people