sprawl vs conurbation

sprawl and conurbation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprawl	Yes	No	Yes	No
conurbation	Yes	No	No	No

As nouns, sprawl and conurbation are synonyms defined as:

sprawl and conurbation: an aggregation or continuous network of urban communities

Other synonyms of sprawl include urban sprawl.

sprawl (noun)	conurbation (noun)
an ungainly posture with arms and legs spread about	an aggregation or continuous network of urban communities
an aggregation or continuous network of urban communities

sprawl (verb)	conurbation (verb)
sit or lie with one's limbs spread out
go, come, or spread in a rambling or irregular way