JMdict: 1316210

時効 【じこう】

  1. [n] statute of limitations; lapse of rights after a period of time; prescription (including acquisitive and extinctive prescription)
  2. [n] becoming invalid or void after a set time
  3. [n] ageing; aging
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Time, Hour とき, -どき
Merit, Efficacy, Efficiency, Benefit コウ き.く, ききめ, なら.う

Words often seen with this one: (experimental feature)

もう (14), 事件 (13)