Definition of "split up" in English

Verb

1. Cease to be together, break apart from the group.

   • After she left to go travelling, my girlfriend and I split up.
   • The soldiers split up into smaller squadrons to search the building.

2. separate, disassociate, cause to come apart.

   • The brothers never behaved in class when they were together, so we had to split them up for the exam.

Adjective

1. Divided or separated.

2. Of a person: having long legs.