breaking and entering vs break-in

breaking and entering and break-in both are nouns.

Word	Noun	Adjective	Verb	Adverb
breaking and entering	Yes	No	No	No
break-in	Yes	No	No	No

As nouns, breaking and entering and break-in are synonyms defined as:

breaking and entering and break-in: trespassing for an unlawful purpose; illegal entrance into premises with criminal intent

Other synonyms of breaking and entering include housebreaking.

breaking and entering (noun)	break-in (noun)
trespassing for an unlawful purpose; illegal entrance into premises with criminal intent	trespassing for an unlawful purpose; illegal entrance into premises with criminal intent