whoremaster vs panderer

whoremaster and panderer both are nouns.

Word	Noun	Adjective	Verb	Adverb
whoremaster	Yes	No	No	No
panderer	Yes	No	No	No

As nouns, panderer is a hypernym of whoremaster; that is, panderer is a word with a broader meaning than whoremaster:

whoremaster: a pimp who procures whores
panderer: someone who procures customers for whores (in England they call a pimp a ponce)

Other hypernyms of whoremaster include fancy man, pandar, pander, pimp, ponce, procurer.

whoremaster (noun)	panderer (noun)
a pimp who procures whores	someone who procures customers for whores (in England they call a pimp a ponce)
a prostitute's customer	a person who serves or caters to the vulgar passions or plans of others (especially in order to make money)