splinter vs fragment

splinter and fragment both are nouns.

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

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

Other hypernyms of splinter include break up, fragmentise, fragmentize.

splinter (noun)	fragment (noun)
a small thin sharp bit of wood or glass or metal	a broken piece of a brittle artifact
	an incomplete piece
	a piece broken off or cut off of something else

splinter (verb)	fragment (verb)
break up into splinters or slivers	break or cause to break into pieces
withdraw from an organization or communion
divide into slivers or splinters