split up

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"

get a divorce; formally terminate a marriage; "The couple divorced after only 6 months"

separate into parts or portions; "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I"

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"

become separated into pieces or fragments; "The figurine broke"; "The freshly baked loaf fell apart"