代行|だいこうdaikou[0]heiban (flat)
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- suru verb, transitive verb, no-adjectiveacting as agent; acting on (someone's) behalf; executing business for
Conjugation
| Dictionary form | 代行する(だいこうする) |
|---|---|
| Polite (masu) | 代行します(だいこうします) |
| Negative (nai) | 代行しない(だいこうしない) |
| polite (masen) | 代行しません(だいこうしません) |
| classical zu / nu | 代行せず・代行せぬ(だいこうせず・だいこうせぬ) |
| Past (ta) | 代行した(だいこうした) |
| polite (mashita) | 代行しました(だいこうしました) |
| Past negative (nakatta) | 代行しなかった(だいこうしなかった) |
| polite (masen deshita) | 代行しませんでした(だいこうしませんでした) |
| Te form | 代行して(だいこうして) |
| Potential | 代行できる(だいこうできる) |
| Passive | 代行される(だいこうされる) |
| Causative | 代行させる(だいこうさせる) |
| Causative passive | 代行させられる(だいこうさせられる) |
| Conditional (ba) | 代行すれば(だいこうすれば) |
| tara | 代行したら(だいこうしたら) |
| Volitional | 代行しよう(だいこうしよう) |
| polite (mashou) | 代行しましょう(だいこうしましょう) |
| Imperative | 代行しろ(だいこうしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym代理だいりNeutralNeutral word for agency or an agent, as in 「部長代理」「代理店」; it stresses representing someone's position, while 「代行」 stresses carrying out the business itself.
- Synonym代わりかわりNeutralNeutral word for a substitute or replacement, as in 「代わりに行く」; the broadest of these terms.
- Synonym代任だいにんWrittenWritten/formal word for performing someone's task in their place, or the person who does so; rare today—say 「代行」 instead.
- SynonymスタンドインNeutralLoanword for a stand-in actor in film or TV; rare in everyday speech.
- Related代人だいにんWrittenWritten/formal word for a deputy or proxy; it sounds old-fashioned and is rarely used today.
- Related代理人だいりにんNeutralNeutral word for an agent or proxy, in law also a lawyer, as in 「法定代理人」; it clearly refers to a person.
- Related代役だいやくNeutralNeutral word for taking over another's role or duty, mostly in performances, as in 「代役を立てる」; 「代行」 focuses on handling business.
- Related代わりかわりNeutralNeutral word for a substitute or replacement, as in 「代わりに行く」; the broadest of these terms.
- Related替え玉かえだまNeutralColloquial word for an impostor or a second helping of noodles; often suggests taking an exam in someone's place.
- Related吹き替えふきかえNeutralRefers to dubbing or a stand-in in film and TV, as in 「日本語吹き替え版」; mostly confined to that field.
- RelatedエージェントNeutralLoanword for an agent or broker, as in 「スポーツエージェント」.
- RelatedピンチヒッターNeutralLoanword for a pinch hitter, or someone temporarily filling in; often used figuratively.
- Related代理店だいりてんNeutralNeutral word for an agency or dealership, as in 「広告代理店」; refers to companies, not individuals.
- Related替えかえNeutralNeutral word for a change or spare item, as in 「替えの電池」; leans toward things rather than people.
- Related身代わりみがわりNeutralNeutral word for standing in for someone, as in 「身代わりになる」; often implies taking the fall or a sacrifice.
- Related代理者だいりしゃWrittenWritten/formal word for someone who performs another's duties; close in meaning to 「代理人」 but less common.
- Related代行者だいこうしゃWrittenWritten/formal word for a person who acts in another's place; leans toward someone carrying out duties.
- Related代り役かわりやくNeutralNeutral word for a substitute actor; synonymous with 「代役」.
- Related代員だいいんWrittenWritten/formal word for someone filling in for another's duties; rarely used today.
- Related代理業者だいりぎょうしゃWrittenWritten/formal word for an agent firm that handles business on others' behalf; leans toward companies.
- Antonym直々じきじきWrittenWritten/formal word for doing something personally and directly; the opposite of leaving it to someone else as with 「代行」.
Use 「代行」 for carrying out business or duties in someone's place, as in 「運転代行」「家事代行」「会長代行」. For representing someone's position or status, use 「代理」; for everyday substitution, 「代わり」 is the broadest choice. 「代理人」 names the person acting for another, and 「代役」 covers stand-ins in performances. 「直々」 is the opposite, meaning done in person.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


