A fragment or broken piece (a shard, splinter, or chip) produced when something breaks, such as glass or pottery.
床にガラスの破片が散らばっているから気をつけて。
Be careful — there are shards of glass scattered on the floor.
石を投げて窓ガラスに破片を作ってしまった。
I accidentally made shards in the window glass by throwing a stone.
壊れた皿の破片を新聞紙で包んで捨てた。
I wrapped the broken plate's fragments in newspaper and threw them away.