一報|いっぽうippou[0]heiban (flat)
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
Definitions
- noun, suru verb, transitive verbinformation; (brief) notice; letting someone know; dropping a line
- nounfirst report; initial report
Conjugation
| Dictionary form | 一報する（いっぽうする） |
|---|---|
| Polite (masu) | 一報します（いっぽうします） |
| Negative (nai) | 一報しない（いっぽうしない） |
| polite (masen) | 一報しません（いっぽうしません） |
| classical zu / nu | 一報せず・一報せぬ（いっぽうせず・いっぽうせぬ） |
| Past (ta) | 一報した（いっぽうした） |
| polite (mashita) | 一報しました（いっぽうしました） |
| Past negative (nakatta) | 一報しなかった（いっぽうしなかった） |
| polite (masen deshita) | 一報しませんでした（いっぽうしませんでした） |
| Te form | 一報して（いっぽうして） |
| Potential | 一報できる（いっぽうできる） |
| Passive | 一報される（いっぽうされる） |
| Causative | 一報させる（いっぽうさせる） |
| Causative passive | 一報させられる（いっぽうさせられる） |
| Conditional (ba) | 一報すれば（いっぽうすれば） |
| tara | 一報したら（いっぽうしたら） |
| Volitional | 一報しよう（いっぽうしよう） |
| polite (mashou) | 一報しましょう（いっぽうしましょう） |
| Imperative | 一報しろ（いっぽうしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym知らせしらせNeutralA broad word for news or notice, also covering omens as in 「虫の知らせ」; 「一報」 is specifically a brief heads-up or the first word received.
- Synonym通知つうちNeutralA formal, typically written notice, as in 「合格通知」, or an alert on a phone; weightier than the quick heads-up of 「一報」.
- Synonym通報つうほうNeutralReporting an emergency to the police or authorities, as in 「110番通報」; it centers on alerting them, while 「一報」 is simply letting someone know.
- Synonym報告ほうこくNeutralReporting circumstances, progress or results, e.g. to a superior; 「一報」 is a mere heads-up that does not dwell on the content.
- Related報道ほうどうNeutralNews coverage by the media for the general public, stressing wide dissemination; the first media report is also called 「第一報」.
- Related消息しょうそくWrittenA formal written word for news from someone or their whereabouts, as in 「消息不明」; 「一報」 is you actively dropping someone a line.
- Related便りたよりNeutralLetters or tidings from someone, as in 「便りがない」, with a warm, personal feel; 「一報」 is a quick word when something comes up.
- Related伝言でんごんNeutralA verbal message relayed through another person or left as a note; 「一報」 is just letting someone know, without the relaying nuance.
Use 「一報」 for a quick heads-up or the first news, as in 「ご一報ください」 or 「第一報」. For formal notices say 「通知」, for reporting to the police 「通報」, and for reporting progress or results 「報告」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
