落下|らっかrakka[0]heiban (flat)
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- noun, suru verb, intransitive verbfall; drop; descent; coming down
Conjugation
| Dictionary form | 落下する(らっかする) |
|---|---|
| Polite (masu) | 落下します(らっかします) |
| Negative (nai) | 落下しない(らっかしない) |
| polite (masen) | 落下しません(らっかしません) |
| classical zu / nu | 落下せず・落下せぬ(らっかせず・らっかせぬ) |
| Past (ta) | 落下した(らっかした) |
| polite (mashita) | 落下しました(らっかしました) |
| Past negative (nakatta) | 落下しなかった(らっかしなかった) |
| polite (masen deshita) | 落下しませんでした(らっかしませんでした) |
| Te form | 落下して(らっかして) |
| Potential | 落下できる(らっかできる) |
| Passive | 落下される(らっかされる) |
| Causative | 落下させる(らっかさせる) |
| Causative passive | 落下させられる(らっかさせられる) |
| Conditional (ba) | 落下すれば(らっかすれば) |
| tara | 落下したら(らっかしたら) |
| Volitional | 落下しよう(らっかしよう) |
| polite (mashou) | 落下しましょう(らっかしましょう) |
| Imperative | 落下しろ(らっかしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym墜落ついらくNeutralFor aircraft and the like crashing down from the air; 「落下」 is for ordinary objects falling from a height, an objective physical description.
- Synonym転落てんらくNeutralFor a person tumbling or rolling down from a height, or falling in social standing; 「落下」 focuses on objects falling.
- Synonym落ちるおちるNeutralThe everyday verb for falling, by far the most common in speech; 「落下」 is a noun with a formal, physical flavor.
- Related下るくだるNeutralMeans going down, descending, or an order or judgment being handed down; 「落下」 is specifically about dropping from a height.
- Related落っこちるおっこちるCasualColloquial for something dropping off, or failing an exam; casual in tone, where 「落下」 is more formal and bookish.
- Related落つおつWrittenAn archaic verb for falling; in modern Japanese it survives mainly in set phrases — say 「落ちる」 instead.
- Antonym上昇じょうしょうNeutralRising or climbing — the direct opposite of 「落下」.
- Antonym浮上ふじょうNeutralSurfacing or floating up from underwater — the opposite of 「落下」.
For an object falling from a height, use 「落下」 — somewhat formal, as in 「落下物注意」 or 「自由落下」. In everyday speech say 「落ちる」; a plane crash is 「墜落」; a person tumbling down is 「転落」; casually, 「落っこちる」. For rising, use 「上昇」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


