cloaca vs sewerage

cloaca and sewerage both are nouns.

Word	Noun	Adjective	Verb	Adverb
cloaca	Yes	No	No	No
sewerage	Yes	No	No	No

As nouns, cloaca and sewerage are synonyms defined as:

cloaca and sewerage: a waste pipe that carries away sewage or surface water

Other synonyms of cloaca include sewer.

cloaca (noun)	sewerage (noun)
a waste pipe that carries away sewage or surface water	a waste pipe that carries away sewage or surface water
(zoology) the cavity (in birds, reptiles, amphibians, most fish, and monotremes but not other mammals) at the end of the digestive tract into which the intestinal, genital, and urinary tracts open	waste matter carried away in sewers or drains