argot vs street name

argot and street name both are nouns.

Word	Noun	Adjective	Verb	Adverb
argot	Yes	No	No	No
street name	Yes	No	No	No

As nouns, street name is a hyponym of argot; that is, street name is a word with a more specific, narrower meaning than argot:

Other hyponyms of argot include rhyming slang.

argot (noun)	street name (noun)
a characteristic language of a particular group (as among thieves)	the name of a street
	the name of a brokerage firm in which stock is held on behalf of a customer
	slang for something (especially for an illegal drug)
	an alternative name that a person chooses or is given (especially in inner city neighborhoods)