evacuate vs suction

evacuate is not a noun while suction is a noun.

Word	Noun	Adjective	Verb	Adverb
evacuate	No	No	Yes	No
suction	Yes	No	Yes	No

As verbs, suction is a hyponym of evacuate; that is, suction is a word with a more specific, narrower meaning than evacuate:

evacuate (noun)	suction (noun)
	the act of sucking
	a force over an area produced by a pressure difference

evacuate (verb)	suction (verb)
excrete or discharge from the body	empty or clean (a body cavity) by the force of suction
remove content from	remove or draw away by the force of suction
create a vacuum in (a bulb, flask, reaction vessel)
move people from their homes or country
move out of an unsafe location into safety