slang vs deceive

slang is a noun but deceive is not a noun.

Word	Noun	Adjective	Verb	Adverb
slang	Yes	No	Yes	No
deceive	No	No	Yes	No

As verbs, deceive is a hypernym of slang; that is, deceive is a word with a broader meaning than slang:

Other hypernyms of slang include betray, lead astray.

slang (noun)	deceive (noun)
a characteristic language of a particular group (as among thieves)
informal language consisting of words and expressions that are not considered appropriate for formal occasions; often vituperative or vulgar

slang (verb)	deceive (verb)
abuse with coarse language	cause someone to believe an untruth
fool or hoax	be false to; be dishonest with
use slang or vulgar language