'split up' definitions:

Definition of 'split up'

From: WordNet
noun
An increase in the number of outstanding shares of a corporation without changing the shareholders' equity; "they announced a two-for-one split of the common stock" [syn: split, stock split, split up]
verb
Get a divorce; formally terminate a marriage; "The couple divorced after only 6 months" [syn: divorce, split up]
verb
Separate into parts or portions; "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I" [syn: divide, split, split up, separate, dissever, carve up] [ant: unify, unite]
verb
Discontinue an association or relation; go different ways; "The business partners broke over a tax question"; "The couple separated after 25 years of marriage"; "My friend and I split up" [syn: separate, part, split up, split, break, break up]
verb
Become separated into pieces or fragments; "The figurine broke"; "The freshly baked loaf fell apart" [syn: break, separate, split up, fall apart, come apart]

Synonyms of 'split up'

From: Moby Thesaurus