piece vs fragment

piece and fragment both are nouns.

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

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

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

Other hyponyms of piece include article, morceau, afterpiece, hiatus, vlog.

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

Other hyponyms of piece include body part, corpus, acicula, base, corner, craton, cutting, hunk, lump, nub, stub, segment, slice, strip, world.

piece (noun)	fragment (noun)
a separate part of a whole	a broken piece of a brittle artifact
game equipment consisting of an object used in playing certain board games	an incomplete piece
a portable gun	a piece broken off or cut off of something else
a work of art of some artistic value
an item that is an instance of some type
a distance
a musical work that has been created
an artistic or literary composition
an instance of some kind
a serving that has been cut from a larger portion
a portion of a natural object
a share of something
a period of indeterminate length (usually short) marked by some action or condition

piece (verb)	fragment (verb)
repair by adding pieces	break or cause to break into pieces
eat intermittently; take small bites of
join during spinning
to join or unite the pieces of
create by putting components or members together