operator vs operate

operator is a noun but operate is not a noun.

Word	Noun	Adjective	Verb	Adverb
operator	Yes	No	No	No
operate	No	No	Yes	No

operator (noun)	operate (noun)
an agent that operates some apparatus or machine
someone who owns or operates a business
a shrewd or unscrupulous person who knows how to circumvent difficulties
a speculator who trades aggressively on stock or commodity markets
(mathematics) a symbol or function representing a mathematical operation

operator (verb)	operate (verb)
	perform surgery on
	perform a movement in military or naval tactics in order to secure an advantage in attack or defense
	handle and cause to function
	keep engaged
	perform as expected when applied
	direct or control; projects, businesses, etc.