はへん破片hahen
1.

A small piece or fragment that has resulted from something being broken or damaged.

2.

A shard or splinter of material that is typically sharp-edged, often left over after the original object has shattered.

3.

A remnant of a larger whole that has been torn apart or disintegrated, commonly seen in broken items like glass or ceramics.

4.

A tiny, often jagged portion of a broken object, emphasizing the disintegration or destruction of that object.

Example:

彼はその破片をくっつけ合わした。