Phrasal Verbs
to stop having a relationship with someone My parents split up last year. She's split up with her boyfriend.
to make two people stop having a relationship with each other My friend is doing her best to split us up.
to divide a group of people into smaller parts; to become divided up in this way We were split up into groups to discuss the question. Let's split up now and meet again at lunchtime.
to divide something into smaller parts The day was split up into 6 one-hour sessions.