blackmailer vs blackmail

blackmailer and blackmail both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackmailer	Yes	No	No	No
blackmail	Yes	No	Yes	No

blackmailer (noun)	blackmail (noun)
a criminal who extorts money from someone by threatening to expose embarrassing information about them	extortion of money by threats to divulge discrediting information

blackmailer (verb)	blackmail (verb)
	obtain through threats
	exert pressure on someone through threats