投影|とうえいtouei[0]heiban (flat)
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- noun, suru verb, transitive verbprojection (of a shadow); casting (a reflection); reflection; cast shadow
- noun, suru verb, transitive verb(geometric) projection
- noun, suru verb, transitive verbreflection (of feelings, experiences, etc.)
- noun, suru verb, transitive verb, psychologyprojection
Conjugation
| Dictionary form | 投影する(とうえいする) |
|---|---|
| Polite (masu) | 投影します(とうえいします) |
| Negative (nai) | 投影しない(とうえいしない) |
| polite (masen) | 投影しません(とうえいしません) |
| classical zu / nu | 投影せず・投影せぬ(とうえいせず・とうえいせぬ) |
| Past (ta) | 投影した(とうえいした) |
| polite (mashita) | 投影しました(とうえいしました) |
| Past negative (nakatta) | 投影しなかった(とうえいしなかった) |
| polite (masen deshita) | 投影しませんでした(とうえいしませんでした) |
| Te form | 投影して(とうえいして) |
| Potential | 投影できる(とうえいできる) |
| Passive | 投影される(とうえいされる) |
| Causative | 投影させる(とうえいさせる) |
| Causative passive | 投影させられる(とうえいさせられる) |
| Conditional (ba) | 投影すれば(とうえいすれば) |
| tara | 投影したら(とうえいしたら) |
| Volitional | 投影しよう(とうえいしよう) |
| polite (mashou) | 投影しましょう(とうえいしましょう) |
| Imperative | 投影しろ(とうえいしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym投射とうしゃNeutralLight shining or beamed onto an object; also used for psychology as in 「感情を投射する」. 「投影」 centers on an image cast onto a flat surface.
- Synonym映写えいしゃNeutralScreening films or slides, as in 「映写機」 (a projector); it centers on showing a picture on a screen rather than casting a shadow.
- Synonym映すうつすNeutralA native verb for reflecting or casting a shadow; it centers on images appearing in mirrors or on screens.
- Synonym映し出すうつしだすNeutralA verb for projecting an image into view; figuratively it can reflect the state of the times. It centers on presenting a picture.
Use 「投影」 for casting a shadow onto a plane or for projecting feelings or the times onto a work, as in 「投影図」「作者の心情の投影」. For screening say 「映写」, for shining light 「投射」, and for verbs 「映す」「映し出す」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


