deceiver vs cheater

deceiver and cheater both are nouns.

Word	Noun	Adjective	Verb	Adverb
deceiver	Yes	No	No	No
cheater	Yes	No	No	No

As nouns, deceiver and cheater are synonyms defined as:

deceiver and cheater: someone who leads you to believe something that is not true

Other synonyms of deceiver include beguiler, cheat, slicker, trickster.

deceiver (noun)	cheater (noun)
someone who leads you to believe something that is not true	someone who leads you to believe something that is not true