break-in vs breaking and entering

break-in and breaking and entering both are nouns.

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

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

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

Other synonyms of break-in include housebreaking.

break-in (noun)	breaking and entering (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