street girl vs slattern

street girl and slattern both are nouns.

Word	Noun	Adjective	Verb	Adverb
street girl	Yes	No	No	No
slattern	Yes	No	No	No

As nouns, street girl and slattern are synonyms defined as:

street girl and slattern: a prostitute who attracts customers by walking the streets

Other synonyms of street girl include floozie, floozy, hooker, hustler, streetwalker.

street girl (noun)	slattern (noun)
a prostitute who attracts customers by walking the streets	a dirty untidy woman
	a prostitute who attracts customers by walking the streets