射す|さすsasu[1]atamadaka (head-high)
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- godan verb, intransitive verbto shine
Conjugation
| Dictionary form | 射す(さす) |
|---|---|
| Polite (masu) | 射します(さします) |
| Negative (nai) | 射さない(ささない) |
| polite (masen) | 射しません(さしません) |
| classical zu / nu | 射さず・射さぬ(ささず・ささぬ) |
| Past (ta) | 射した(さした) |
| polite (mashita) | 射しました(さしました) |
| Past negative (nakatta) | 射さなかった(ささなかった) |
| polite (masen deshita) | 射しませんでした(さしませんでした) |
| Te form | 射して(さして) |
| Potential | 射せる(させる) |
| Passive | 射される(さされる) |
| Causative | 射させる(ささせる) |
| Causative passive | 射させられる(ささせられる) |
| Conditional (ba) | 射せば(させば) |
| tara | 射したら(さしたら) |
| Volitional | 射そう(さそう) |
| polite (mashou) | 射しましょう(さしましょう) |
| Imperative | 射せ(させ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym照るてるNeutralThe sun or moon shining (「日が照る」「月が照る」); 「射す」 stresses light coming in.
- Synonym差すさすNeutralLight coming in (「日が差す」); synonymous with 「射す」, and the usual spelling in everyday writing.
- Related輝くかがやくNeutralShines, sparkles (「星が輝く」): the emphasis is on the light an object gives off, whereas 「射す」 is about light shining in.
- Related光るひかるNeutralGives off or reflects light (「目が光る」); the most general of these words.
- Related光り輝くひかりかがやくWrittenAn intensified form of 「輝く」 meaning to shine brilliantly; mostly in written/formal prose.
- RelatedひらめくNeutralFlashes or glints, and also means an idea flashing into the mind (「アイデアが閃く」).
- RelatedきらめくWrittenGlitters, sparkles (「宝石がきらめく」); mostly found in written/formal prose.
- Antonym曇るくもるNeutralThe sky clouding over; the opposite of 「射す」.
- Antonym陰るかげるNeutralGrowing dark as clouds block the light (「日が陰る」); the opposite of 「射す」.
For light shining in, use 「射す」 (「窓から光が射す」), usually written 「差す」 in everyday use. For objects giving off light say 「光る」 or 「輝く」, for the sun or moon 「照る」; the opposites are 「陰る」 and 「曇る」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


