King's Kung-Fu& Tai Chi

Japanese symbol for “validity”

Romaji: kouryoku
effect; efficacy; validity; potency

In Japanese, validity is , read (kouryoku).

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 effect; efficacy; validity; potency

Kanji and stroke order

merit, efficacy, efficiency
on: コウ
kun: き.く、ききめ、なら.う
8 strokes · JLPT 2
power, strength, strong
on: リョク、リキ、リイ
kun: ちから
2 strokes · JLPT 3

Other Japanese words for “validity”

WordReadingMeaning
つうよう tsuuyou(common) use (of a language, currency, etc.); current use; circulation
だとうせい datouseivalidity; verification; propriety
ゆうこうせい yuukouseivalidity; effectiveness
ごうほうせい gouhouseilawfulness; legality; validity
せいとうせい seitouseilawfulness; propriety; reasonableness

Related words

Words that share a kanji.

WordReadingMeaning
こうか koukaeffect; effectiveness; efficacy
ゆうこう yuukouvalid; effective
こうりつ kouritsuefficiency
むこう mukouinvalid; void; ineffective
じこう jikouprescription; statute of limitations; limitation period
きょうりょく kyouryokucooperation; collaboration; help
のうりょく nouryokuability; faculty
どりょく doryokueffort; exertion; endeavour

See also: Chinese symbol for “validity”.

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.