faker vs impostor

faker and impostor both are nouns.

Word	Noun	Adjective	Verb	Adverb
faker	Yes	No	No	No
impostor	Yes	No	No	No

As nouns, faker and impostor are synonyms defined as:

Other synonyms of faker include fake, fraud, imposter, pretender, pseud, pseudo, role player, sham, shammer.

faker (noun)	impostor (noun)
a person who makes deceitful pretenses	a person who makes deceitful pretenses