Section Eight vs war machine

Section Eight and war machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Section Eight	Yes	No	No	No
war machine	Yes	No	No	No

Section Eight (noun)	war machine (noun)
a discharge from the US Army based on unfitness or character traits deemed undesirable	the military forces of a nation
a soldier who received a Section Eight discharge as unfit for military service