blackmailer vs extortioner

blackmailer and extortioner both are nouns.

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

As nouns, blackmailer and extortioner are synonyms defined as:

blackmailer and extortioner: a criminal who extorts money from someone by threatening to expose embarrassing information about them

Other synonyms of blackmailer include extortionist.

blackmailer (noun)	extortioner (noun)
a criminal who extorts money from someone by threatening to expose embarrassing information about them	a criminal who extorts money from someone by threatening to expose embarrassing information about them