切断・截断|せつだんsetsudan[0]heiban (flat)
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Which spelling to use
切断切断 is the most common written form and the recommended choice for beginners; it is written entirely in kanji.
截断截断 is written entirely in kanji, but it is rarely used; learners will seldom need to choose it.
Definitions
- noun, suru verb, transitive verbcutting; severance; section; amputation; disconnection
Conjugation
| Dictionary form | 切断する（せつだんする） |
|---|---|
| Polite (masu) | 切断します（せつだんします） |
| Negative (nai) | 切断しない（せつだんしない） |
| polite (masen) | 切断しません（せつだんしません） |
| classical zu / nu | 切断せず・切断せぬ（せつだんせず・せつだんせぬ） |
| Past (ta) | 切断した（せつだんした） |
| polite (mashita) | 切断しました（せつだんしました） |
| Past negative (nakatta) | 切断しなかった（せつだんしなかった） |
| polite (masen deshita) | 切断しませんでした（せつだんしませんでした） |
| Te form | 切断して（せつだんして） |
| Potential | 切断できる（せつだんできる） |
| Passive | 切断される（せつだんされる） |
| Causative | 切断させる（せつだんさせる） |
| Causative passive | 切断させられる（せつだんさせられる） |
| Conditional (ba) | 切断すれば（せつだんすれば） |
| tara | 切断したら（せつだんしたら） |
| Volitional | 切断しよう（せつだんしよう） |
| polite (mashou) | 切断しましょう（せつだんしましょう） |
| Imperative | 切断しろ（せつだんしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym切り落とすきりおとすNeutralCutting a part off so it falls away, as in 「枝を切り落とす」 or 「脂身を切り落とす」; 「切断」 focuses on severing something through or apart.
- Synonym切り取るきりとるNeutralCutting out a piece and taking it, also quoting or excerpting speech; 「切断」 is about the severing itself, whether or not the piece is taken.
- Synonym断ち切るたちきるNeutralTo sever, often figuratively for cutting off ties or breaking a vicious cycle; 「切断」 mostly refers to cutting objects or lines.
- Synonym切り離すきりはなすNeutralCutting something loose so it separates, as in 「車両を切り離す」, also used for treating issues separately; 「切断」 stresses the cutting itself.
- SynonymカットNeutralLoanword covering cutting, editing out and haircuts; widely used in speech, even 「回線をカットする」, but amputation is 「切断」.
- Synonym切るきるNeutralThe most basic verb, covering cutting in general as well as hanging up or switching off; 「切断」 leans written and stresses a full break.
- Related切除せつじょWrittenWritten, medical term for removing diseased or unwanted tissue, as in 「胃の切除」; 「切断」 only means severing and does not imply removing a lesion.
- Related裁断さいだんNeutralCutting cloth or paper to a set size, also a judgement or ruling; 「切断」 is not restricted by material and stresses severing or disconnecting.
- Related裁つたつWrittenWritten word for cutting cloth to size, as in 「布を裁つ」; 「切断」 applies to any material and stresses a complete break.
- RelatedカッティングNeutralLoanword for cutting or trimming, mostly in specialist fields like design, clothing and hairstyling; everyday speech prefers 「カット」.
- Related切り払うきりはらうNeutralLopping away obstructive branches or growth with a blade, with an emphasis on clearing; 「切断」 stresses cutting something in two.
- Antonym接続せつぞくNeutralAntonym: connecting or hooking up lines and devices, as in 「ネットに接続する」; opposite of 「切断」 in the sense of cutting a line.
- Antonym結合けつごうNeutralAntonym: two things joining into one, as in 「分子の結合」; opposite of 「切断」 in the sense of uniting versus cutting apart.
Use 「切断」 for cutting something clean through or disconnecting a line, as in 「回線切断」. For everyday cutting say 「切る」, for surgical removal 「切除」, for cutting cloth 「裁つ」. The opposite is 「接続」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
