hooker vs lady of pleasure

hooker and lady of pleasure both are nouns.

Word	Noun	Adjective	Verb	Adverb
hooker	Yes	No	No	No
lady of pleasure	Yes	No	No	No

As nouns, lady of pleasure is a hypernym of hooker; that is, lady of pleasure is a word with a broader meaning than hooker:

hooker (noun)	lady of pleasure (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)