投射|とうしゃtousha[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, transitive verbprojection (of an image)
Conjugation
Dictionary form投射する(とうしゃする)
Polite (masu)投射します(とうしゃします)
Negative (nai)投射しない(とうしゃしない)
polite (masen)投射しません(とうしゃしません)
classical zu / nu投射せず・投射せぬ(とうしゃせず・とうしゃせぬ)
Past (ta)投射した(とうしゃした)
polite (mashita)投射しました(とうしゃしました)
Past negative (nakatta)投射しなかった(とうしゃしなかった)
polite (masen deshita)投射しませんでした(とうしゃしませんでした)
Te form投射して(とうしゃして)
Potential投射できる(とうしゃできる)
Passive投射される(とうしゃされる)
Causative投射させる(とうしゃさせる)
Causative passive投射させられる(とうしゃさせられる)
Conditional (ba)投射すれば(とうしゃすれば)
tara投射したら(とうしゃしたら)
Volitional投射しよう(とうしゃしよう)
polite (mashou)投射しましょう(とうしゃしましょう)
Imperative投射しろ(とうしゃしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym映すうつすNeutralThe most general word for showing an image, as in 「スクリーンに映す」; unlike 投射, it refers to the image displayed, not to light shining onto an object.
  • Synonym映し出すうつしだすNeutralProjects and displays an image; figuratively it can mean reflecting society or the times, with the focus on the picture presented.
  • Synonym投影とうえいWrittenA written word for casting a shadow, and in figurative use for psychological projection, as in 「自分を投影する」. Choose it over 投射 for shadows.
  • Synonym投映WrittenA written, technical word for projecting light or images, as when showing something with a projector.
  • Related射影しゃえいWrittenA written word for casting light or a shadow onto a wall or similar surface, and for the image cast; also a term in mathematics and geometry.

Use 「投射」 for light cast onto an object, as in 「光を投射する」 or 「投射角」. For screen images, 「映す」 is the everyday choice; 「映し出す」 stresses the picture shown. In formal prose, use 「投映」 (technical), 「投影」 (shadows, psychological projection), 「射影」 (math).

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 光ひかりなどを物体ぶったいに当あてること。
  2. スクリーンに写し出うつしだすこと。
Kanji in this word
English equivalents
See also

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