Meaning

• To enter a place by force or illicit means.

  "Someone broke in and stole his radio."

• To cause (something, or someone, new) to function more naturally through use or wear

  "These shoes will be more comfortable after I have broken them in."

• (of a horse) To tame; make obedient; to train to follow orders of the owner.

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