How to say "fragment" in Japanese

Choosing the right word
  • 半端はんぱJLPT N1approx.Common
    noun, na-adjectiveCovers the remnant and incomplete-set senses rather than a physical broken piece: it points to something left over, odd, or not whole. Rarely the word you want for a physical fragment.
    半端はんぱな時間じかんに自転車じてんしゃに乗のるだけだ。↗
    I only ride a bicycle at odd times.
  • かけらCommon
    nounA small piece chipped or broken off something, such as glass or pottery; it is normally written in kana. Fits a shard you might pick up from a broken cup.
    彼かれらはパンのかけらを置おくことによって道みちに迷まよわなかった。↗
    Putting pieces of bread prevented them from getting lost.
  • 破片はへんJLPT N2approx.Common
    nounA concrete broken piece: debris from something shattered, smashed, or blown apart, such as glass shards or splinters. Choose this for the physical wreckage sense of 'fragment'.
    彼かれはその破片はへんをくっつけ合あわした。↗
    He stuck the broken pieces together.
  • 断片だんぺんCommon
    nounThe word for abstract fragments: scraps of information, memory, or text rather than physical debris. It can also denote a physical piece, but its core sense is a disconnected part of a whole.
    It looks like your hard disk is fragmented.
  • 切れ端きれはしCommon
    nounA piece cut or torn off something — a scrap of cloth or paper, the cut-off end of a strip. Use it when the fragment results from cutting rather than from something smashing.
    少女しょうじょは生地きじの切れ端きれはしで人形にんぎょうを作つくった。↗
    The girl made a doll out of a piece of cloth.

Use 破片 or 「かけら」 for physical broken pieces, 「切れ端」 for pieces cut or torn off, 断片 for abstract fragments of information or memory, and 半端 only for leftovers or incompleteness.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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