Japanese word

有効

Pronunciation

Romajiyūkō

Meaning

  • na-adjectivevalid

Example

この券は有効です。ko no ken wa yū kō de su

This ticket is valid.

Illustration for 有効 (valid)

More examples

限られた時間を有効に使います。kagi ra re ta ji kan o yū kō ni tsuka i ma su

I use my limited time effectively.

Core concept

Describes something that remains usable or produces the intended result under the relevant conditions.

Common phrases

  • 有効に使うyū kō ni tsuka u

    use effectively

  • 有効な手段yū kō na shu dan

    effective means

Similar words

効果的kōkateki: Works well in achieving a particular purpose or result.

Definition in Japanese

期限や条件を満たして使うことができ、目的にかなう力を持つさま。ki gen ya jō ken o mi ta shi te tsuka u ko to ga de ki moku teki ni ka na u chikara o mo tsu sa ma

Word origin

有効 (yūkō, "valid; effective") is Sino-Japanese: 有 (yū, "have") gives the sense of possession, and 効 (kō, "effect") gives the sense of result or force.

Usage tips

  • In everyday Japanese, the same adjective applies to something that is still usable and to something that works well, so context determines whether valid or effective is the better English translation.

Other meanings

  • effectivena-adjective

Opposites

Related words

  • 有効性yūkōseieffectivenessnoun

Word lists with this word