作動|さどうsadou[0]heiban (flat)
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- noun, suru verb, intransitive verboperation; functioning; running
Conjugation
| Dictionary form | 作動する(さどうする) |
|---|---|
| Polite (masu) | 作動します(さどうします) |
| Negative (nai) | 作動しない(さどうしない) |
| polite (masen) | 作動しません(さどうしません) |
| classical zu / nu | 作動せず・作動せぬ(さどうせず・さどうせぬ) |
| Past (ta) | 作動した(さどうした) |
| polite (mashita) | 作動しました(さどうしました) |
| Past negative (nakatta) | 作動しなかった(さどうしなかった) |
| polite (masen deshita) | 作動しませんでした(さどうしませんでした) |
| Te form | 作動して(さどうして) |
| Potential | 作動できる(さどうできる) |
| Passive | 作動される(さどうされる) |
| Causative | 作動させる(さどうさせる) |
| Causative passive | 作動させられる(さどうさせられる) |
| Conditional (ba) | 作動すれば(さどうすれば) |
| tara | 作動したら(さどうしたら) |
| Volitional | 作動しよう(さどうしよう) |
| polite (mashou) | 作動しましょう(さどうしましょう) |
| Imperative | 作動しろ(さどうしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym稼働かどうNeutralCovers factories and equipment being put into operation, stressing startup and production; appears in 「稼働率」.
- Synonym運転うんてんNeutralUsed for driving vehicles, and also for running machines and trains.
- Related機能きのうNeutralRefers to a function or working capability — what something has or does; 「作動」 stresses a device running after being triggered.
- Related動作どうさNeutralCovers body movements, and also the running of machines and software, as in 「動作確認」.
- Related操業そうぎょうWrittenA written/formal term for factories being at work, stressing production and business operations, as in 「操業停止」.
- Antonym停止ていしNeutralMeans stopping or coming to a halt; the opposite of 「作動」, which is about a device running.
- Antonym休止きゅうしWrittenA written/formal word for pausing or suspending activity; stands opposite 「作動」's sense of running.
Use 「作動」 when a safety device or machine is triggered into operation, as in 「ブレーキが作動する」. For software running, say 「動作」; for factories or equipment starting up, 「稼働」; for driving, 「運転」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


