woman of the street vs working girl

woman of the street and working girl both are nouns.

Word	Noun	Adjective	Verb	Adverb
woman of the street	Yes	No	No	No
working girl	Yes	No	No	No

As nouns, woman of the street and working girl are synonyms defined as:

woman of the street and working girl: a woman who engages in sexual intercourse for money

Other synonyms of woman of the street include bawd, cocotte, cyprian, fancy woman, harlot, lady of pleasure, prostitute, sporting lady, tart, whore.

woman of the street (noun)	working girl (noun)
a woman who engages in sexual intercourse for money	a young woman who is employed
	a woman who engages in sexual intercourse for money