Section Eight vs armed services

Section Eight and armed services both are nouns.

Word	Noun	Adjective	Verb	Adverb
Section Eight	Yes	No	No	No
armed services	Yes	No	No	No

Section Eight (noun)	armed services (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