ほいくきょうりょくび 保育協力日 LinksSentence search for 保育協力日Sentence search for ほいくきょうりょくびKanji details for 保, 育, 協, 力 and 日Edit in JMdict Noun1. day on which a nursery school requests the cooperation of parents to keep their children at home Discussions Log in to talk about this word.