King's Kung-Fu& Tai Chi

Japanese symbol for “photon”

Romaji: koushi
photon

In Japanese, photon is , read (koushi).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

  1. n photon (physics)

Kanji and stroke order

ray, light
on: コウ
kun: ひか.る、ひかり
6 strokes · JLPT 3
child, sign of the rat, 11PM-1AM
on: シ、ス、ツ
kun: こ、-こ、ね
3 strokes · JLPT 4

Other Japanese words for “photon”

WordReadingMeaning
フォトン fotonphoton
こうりょうし kouryoushilight quantum; photon

Related words

Words that share a kanji.

WordReadingMeaning
かんこう kankousightseeing; tourism
こうけい koukeiscene; spectacle; sight
にっこう nikkousunlight; sunshine; sunbeams
えいこう eikouglory
こうせん kousenray (of light); beam; light
ひかる hikaruto shine; to glitter; to be bright
こども kodomochild; children
じょし joshiwoman; girl

See also: Chinese symbol for “photon”.

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.