Meaning of “break (sth) up” - Learner’s Dictionary

break (sth) up

phrasal verb with break uk us /breɪk/ verb (past tense broke, past participle broken)

to divide into many pieces, or to divide something into many pieces:

The company has been broken up and sold.

(Definition of “break (sth) up” from the Cambridge Learner’s Dictionary © Cambridge University Press)