intervention vs intervene

intervention is a noun but intervene is not a noun.

Word	Noun	Adjective	Verb	Adverb
intervention	Yes	No	No	No
intervene	No	No	Yes	No

intervention (noun)	intervene (noun)
the act of intervening (as to mediate a dispute, etc.)
(law) a proceeding that permits a person to enter into a lawsuit already in progress; admission of person not an original party to the suit so that person can protect some right or interest that is allegedly affected by the proceedings
care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
the act or fact of interposing one thing between or among others
a policy of intervening in the affairs of other countries

intervention (verb)	intervene (verb)
	occur between other event or between certain points of time
	get involved, so as to alter or hinder an action, or through force or threat of force
	be placed or located between other things or extend between spaces and events