Japanese word

光線

Pronunciation

Romajikōsen

Meaning

  • nounray

Example

太陽の光線が窓から入りました。tai yō no kō sen ga mado ka ra hai ri ma shi ta

The sun's rays came through the window.

Illustration for 光線 (ray)

More examples

カーテンを閉めて、強い光線を遮りました。kā te n o shi me te tsuyo i kō sen o saegi ri ma shi ta

I closed the curtains and blocked the strong rays.

Core concept

Light from a source is understood as a line-like stream moving in one direction rather than spreading evenly in all directions.

Common phrases

  • 光線が差し込むkō sen ga sa shi ko mu

    rays stream in

  • 光線を放つkō sen o hana tsu

    emit rays

Similar words

光芒kōbō: A distinct beam of light, often seen as it passes through space or an opening.
光条hikarijō: A thin strip of light with a clear linear shape.

Definition in Japanese

光源から一定方向にまっすぐ進む、筋状の光。kō gen ka ra it tei hō kō ni ma ssu gu susu mu suji jō no hikari

Word origin

光線 (kōsen) is a Sino-Japanese compound of 光 (kō, "light") and 線 (sen, "line"), whose parts point to a line of light.

Usage tips

  • Although English ray commonly occurs in X-ray and ray of light, 光線 (kōsen) refers to the light itself rather than a line drawn on a page.

Other meanings

  • beamnoun
  • lightnoun

Word lists with this word