cathouse vs house of prostitution

cathouse and house of prostitution both are nouns.

Word	Noun	Adjective	Verb	Adverb
cathouse	Yes	No	No	No
house of prostitution	Yes	No	No	No

As nouns, cathouse and house of prostitution are synonyms defined as:

cathouse and house of prostitution: a building where prostitutes are available

Other synonyms of cathouse include bagnio, bawdyhouse, bordello, brothel, house of ill repute, sporting house, whorehouse.

cathouse (noun)	house of prostitution (noun)
a building where prostitutes are available	a building where prostitutes are available