inspect vs inspector

inspect is not a noun while inspector is a noun.

Word	Noun	Adjective	Verb	Adverb
inspect	No	No	Yes	No
inspector	Yes	No	No	No

inspect (noun)	inspector (noun)
	an investigator who observes carefully
	a high ranking police officer

inspect (verb)	inspector (verb)
examine carefully for accuracy with the intent of verification
come to see in an official or professional capacity
look over carefully