shammer vs deceiver

shammer and deceiver both are nouns.

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

As nouns, deceiver is a hypernym of shammer; that is, deceiver is a word with a broader meaning than shammer:

Other hypernyms of shammer include beguiler, cheat, cheater, slicker, trickster.

shammer (noun)	deceiver (noun)
a person who makes deceitful pretenses	someone who leads you to believe something that is not true
someone shirking their duty by feigning illness or incapacity