split up vs split

split up and split both are nouns.

Word	Noun	Adjective	Verb	Adverb
split up	Yes	No	Yes	No
split	Yes	Yes	Yes	No

As nouns, split up and split are synonyms defined as:

split up and split: an increase in the number of outstanding shares of a corporation without changing the shareholders' equity

Other synonyms of split up include stock split.

As verbs, split is a hyponym of split up; that is, split is a word with a more specific, narrower meaning than split up:

As verbs, split is a hypernym of split up; that is, split is a word with a broader meaning than split up:

Other hypernyms of split up include break, break up, part, separate, split up.

As verbs, split up and split are synonyms defined as:

split up and split: discontinue an association or relation; go different ways

Other synonyms of split up include break, break up, part, separate.

As verbs, split up and split are synonyms defined as:

Other synonyms of split up include carve up, dissever, divide, separate.

split up (noun)	split (noun)
an increase in the number of outstanding shares of a corporation without changing the shareholders' equity	division of a group into opposing factions
	the act of rending or ripping or splitting something
	extending the legs at right angles to the trunk (one in front and the other in back)
	an increase in the number of outstanding shares of a corporation without changing the shareholders' equity
	(tenpin bowling) a divided formation of pins left standing after the first bowl
	a dessert of sliced fruit and ice cream covered with whipped cream and cherries and nuts
	an opening made forcibly as by pulling apart
	a lengthwise crack in wood
	a promised or claimed share of loot or money
	a bottle containing half the usual amount

split up (adjective)	split (adjective)
	(especially of wood) cut or ripped longitudinally with the grain
	having been divided; having the unity destroyed

split up (verb)	split (verb)
become separated into pieces or fragments	come open suddenly and violently, as if from internal pressure
get a divorce; formally terminate a marriage	separate or cut with a tool, such as a sharp instrument
discontinue an association or relation; go different ways	go one's own way; move apart
separate into parts or portions	discontinue an association or relation; go different ways
	separate into parts or portions