split up
Longman Dictionary of Contemporary English 5++LDOCE 5++split up → split up at split1(6)
split up
split up phrasal verb (see also split)
1. if people split up, or if someone splits them up, they end a marriage or relationship with each other:
Steve’s parents split up when he was four.
split up with
I thought she’d split up with her boyfriend.
split somebody ↔ up
Why would she try to split us up?
2. to divide people into different groups, or to be divided into groups:
Please don’t split up when we get to the museum.
split something/somebody ↔ up
The teacher split up the class into three groups.
3. split something ↔ up to divide something into different parts
split something ↔ up into
The house has now been split up into individual flats.
split up phrasal verb (see also split)
1. if people split up, or if someone splits them up, they end a marriage or relationship with each other:
split up with
split somebody ↔ up
2. to divide people into different groups, or to be divided into groups:
split something/somebody ↔ up
3. split something ↔ up to divide something into different parts
split something ↔ up into