1.
If two people ~, or if someone or something splits them up, they end their relationship or marriage.
Research suggests that children whose parents ~ are more likely to drop out of high school...
I was beginning to think that nothing could ever split us up...
I ~ with my boyfriend last year.
PHRASAL VERB: V P, V n P, V P with n
2.
If a group of people ~ or are ~, they go away in different directions.
Did the two of you ~ in the woods?...
This situation has ~ the family...
Touring the album temporarily split the band up.
PHRASAL VERB: V P, V P n (not pron), V n P
3.
If you split something up, or if it splits up, you divide it so that it is in a number of smaller separate sections.
Any thought of splitting up the company was unthinkable they said...
Even though museums have begged to borrow her collection, she could never split it up...
Her company has had to ~ and work from two locations.
PHRASAL VERB: V P n (not pron), V n P, V P