fragment vs splinter

fragment and splinter both are nouns.

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

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

Other hyponyms of fragment include atomise, atomize, bray, comminute, crunch, grind, mash, pound, sunder, sliver, rag, crumb, brecciate, crush, grate, grind.

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

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