occupation vs armed services

occupation and armed services both are nouns.

Word	Noun	Adjective	Verb	Adverb
occupation	Yes	No	No	No
armed services	Yes	No	No	No

occupation (noun)	armed services (noun)
the principal activity in your life that you do to earn money	the military forces of a nation
the act of occupying or taking possession of a building
the control of a country by military forces of a foreign power
any activity that occupies a person's attention
the period of time during which a place or position or nation is occupied