splinter vs split

splinter and split both are nouns.

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

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

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

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

Other hypernyms of splinter include carve up, dissever, divide, separate, split up.

splinter (noun)	split (noun)
a small thin sharp bit of wood or glass or metal	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

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

splinter (verb)	split (verb)
break up into splinters or slivers	come open suddenly and violently, as if from internal pressure
withdraw from an organization or communion	separate or cut with a tool, such as a sharp instrument
divide into slivers or splinters	go one's own way; move apart
	discontinue an association or relation; go different ways
	separate into parts or portions