break in

To enter a place by force or illicit means.

To reach a state of functioning more smoothly through use or wear; to cause (something, or someone, new) to undergo this change.

Starting something brand new or at a new level.

To tame; make obedient; to train to follow orders of the owner.

To take the virginity of a girl, to deflower.

To interrupt one's conversation; speak before another person has finished speaking.

To initiate a new person into prostitution or prison sex acts.