hooker vs woman of the street

hooker and woman of the street both are nouns.

Word	Noun	Adjective	Verb	Adverb
hooker	Yes	No	No	No
woman of the street	Yes	No	No	No

As nouns, woman of the street is a hypernym of hooker; that is, woman of the street is a word with a broader meaning than hooker:

hooker (noun)	woman of the street (noun)
a prostitute who attracts customers by walking the streets	a woman who engages in sexual intercourse for money
(rugby) the player in the middle of the front row of the scrum who tries to capture the ball with the foot
a golfer whose shots typically curve left (for right-handed golfers)