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有効 (ゆうこう, yuukou) Japanese meaning: valid | Kotomora
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ぷ
は
明日あした
まで
有ゆう
効こう
です
。
This ticket is valid until tomorrow.
The new law will take effect next month.
Usage patterns 〈 時とき 〉 まで 有ゆう 効こう valid until 〈time〉
This coupon is valid until the end of next month.
〈 事こと 〉 に 対たい して 有ゆう 効こう effective against 〈something〉
This vaccine is effective against the new strain of the virus as well.
〈 場ば 所しょ 〉 で 有ゆう 効こう valid at 〈place〉
This ticket is valid at any movie theater nationwide.
〈 数かず 〉 年ねん 間かん 有ゆう 効こう valid for 〈number〉 years
This passport is valid for ten years.
Expressions 有ゆう 効こう に 使つか う make good use of; use effectively; use to one's advantage Kanji 効 merit, efficacy, efficiency Related words 有効 emphasizes that something is legally or officially valid or in force, while 効果的 emphasizes that something actually produces a good result.
有効 focuses on validity or being in effect, whereas 有用 focuses on practical usefulness regardless of official status.
有効 is a na-adjective/noun meaning 'effective' or 'valid', often used for rules or methods, whereas 役立つ is a verb describing something proving practically useful.
有効 describes something as functionally valid or effective (like a valid ticket), whereas 通用 describes something as being in common, accepted use.
有効 is an adjective meaning 'valid' or 'effective' (used for tickets, contracts, etc.), while 効力 is the noun naming the power or validity itself.
Opposites invalid; void; ineffective; unavailable
有効 describes something effective or valid, the opposite of 無駄 which describes something wasted or futile.
Etymology From 有 (possess, exist) + 効 (effect, efficacy). The combination naturally yields the meaning 'having effect' or 'valid'.
域いき
Show 5 more telling blow; effective strike
significant digit; significant figure
valid vote; valid ballot
effective action
effective utilization; efficient use
