よあ 夜を明かす Show inflections LinksSentence search for 夜を明かすSentence search for よをあかすKanji details for 夜 and 明Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'su' ending1. to stay up all night; to spend the night without sleepきんじょ近所のひとびと人々がかれ彼とともに、こうたい交替でよをあ夜を明かした。The neighbors took turns sitting up with him. Discussions Log in to talk about this word.