fragment vs sliver

fragment and sliver both are nouns.

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

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

fragment: a piece broken off or cut off of something else
sliver: a thin fragment or slice (especially of wood) that has been shaved from something

As verbs, sliver is a hyponym of fragment; that is, sliver 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, splinter, rag, crumb, brecciate, crush, grate, grind.

fragment (noun)	sliver (noun)
a broken piece of a brittle artifact	a thin fragment or slice (especially of wood) that has been shaved from something
an incomplete piece	a small thin sharp bit of wood or glass or metal
a piece broken off or cut off of something else

fragment (verb)	sliver (verb)
break or cause to break into pieces	break up into splinters or slivers
	form into slivers
	divide into slivers or splinters