break up
To break into pieces.
The workmen broke up the pavement to dig up the pipes under it.
River ice breaks up in the spring.
To lose or destroy spirit or self-control. Usually used in the passive.
Mrs. Lawrence was all broken up after her daughter's death, and did not go out of the house for two months.
To come or to put to an end, especially by separation; separate. Often used in the informal phrase break it up.
Some men kept interrupting the speakers, and finally broke up the meeting.
The party broke up at midnight.
The boys were fighting, and a passing policeman ordered them to break it up.
To stop being friends. To end a romantic relationship, a marriage, or a business partnership.
Mary and June were good friends and did everything together, but then they had a quarrel and broke up.
Tom and Jane broke up because Tom played so much golf that he had no time for her.