JMdict: 2073920

安全日 【あんぜんび】

  1. [n] safe day (when unprotected sex is less likely to lead to conception)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
安 Relax, Cheap, Low, Quiet, Rested, Contented, Peaceful アン やす.い, やす.まる, やす, やす.らか 3
全 Whole, Entire, All, Complete, Fulfill ゼン まった.く, すべ.て 3
日 Day, Sun, Japan, Counter For Days ニチ, ジツ ひ, -び, -か 1