JMdict: 1947960

有効期間 【ゆうこうきかん】

  1. [n] term of validity; period for which something is valid (e.g. ticket)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
有 Possess, Have, Exist, Happen, Occur, Approx ユウ, ウ あ.る
効 Merit, Efficacy, Efficiency, Benefit コウ き.く, ききめ, なら.う
期 Period, Time, Date, Term キ, ゴ
間 Interval, Space カン, ケン あいだ, ま, あい