交通|こうつうkoutsuu[0]heiban (flat)
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- noun, suru verbtraffic; transportation
- noun, suru verbcommunication; exchange (of ideas, etc.)
- noun, suru verbintercourse
Conjugation
| Dictionary form | 交通する(こうつうする) |
|---|---|
| Polite (masu) | 交通します(こうつうします) |
| Negative (nai) | 交通しない(こうつうしない) |
| polite (masen) | 交通しません(こうつうしません) |
| classical zu / nu | 交通せず・交通せぬ(こうつうせず・こうつうせぬ) |
| Past (ta) | 交通した(こうつうした) |
| polite (mashita) | 交通しました(こうつうしました) |
| Past negative (nakatta) | 交通しなかった(こうつうしなかった) |
| polite (masen deshita) | 交通しませんでした(こうつうしませんでした) |
| Te form | 交通して(こうつうして) |
| Potential | 交通できる(こうつうできる) |
| Passive | 交通される(こうつうされる) |
| Causative | 交通させる(こうつうさせる) |
| Causative passive | 交通させられる(こうつうさせられる) |
| Conditional (ba) | 交通すれば(こうつうすれば) |
| tara | 交通したら(こうつうしたら) |
| Volitional | 交通しよう(こうつうしよう) |
| polite (mashou) | 交通しましょう(こうつうしましょう) |
| Imperative | 交通しろ(こうつうしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym輸送ゆそうWrittenWritten/formal: carrying people and goods by vehicle, as in 「輸送手段」; it stresses the moving itself, while 「交通」 is about the flow of people and traffic.
- Synonym運輸うんゆWrittenWritten/formal: transport of passengers and freight, as in industry names like 「運輸業」; 「交通」 stresses the flow of people and traffic and can also mean communication.
- Synonym往来おうらいWrittenWritten/formal: coming and going on a road, also a road or street itself and socializing, as in 「往来が激しい」; 「交通」 is not used directly as a street name.
- SynonymトランスポーテーションNeutralNeutral loanword for transportation, its means and systems; 「交通」 also covers the flow of people and traffic, and everyday talk of transport favors 「輸送」.
- SynonymトランスポートNeutralNeutral loanword for moving people or things to another place; 「交通」 is about passage and traffic, and 「輸送」 is the usual word for transport in daily use.
- Related運送うんそうWrittenWritten/formal: carrying passengers or goods, as in 「運送会社」; it stresses getting people or things to their destination, while 「交通」 is about coming and going.
- Related行き来ゆききNeutralNeutral: people and traffic coming and going, also keeping in touch; it highlights the back-and-forth motion, while 「交通」 covers passage, transport and communication.
Default to 「交通」 for traffic and transport in general. Use 「輸送」 or 「運送」 for carrying goods, 「運輸」 for the transport industry, and 「行き来」 or 「往来」 for people coming and going.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


