Real Dictionary

break in
phrasal verb: If someone, usually a thief, breaks in, they get into a building by force.

break-in
designating or of the period of first use, intended to prepare or train something or someone new
the act of forcibly entering a building, apartment, etc., esp. in order to rob
to enter by force or craft
to enter forcibly or unexpectedly
to interrupt
countable noun: If there has been a break-in, someone has got into a building by force.
noun: an illegal entry into a home, car, office, etc.
noun: the illegal entering of a building esp by thieves
noun: the illegal entering of a building, esp by thieves