ともびき 友引 LinksSentence search for 友引Sentence search for ともびきSentence search for ゆういんKanji details for 友 and 引Edit in JMdict Noun1. day that is lucky in the morning and evening but unlucky around noon, when one's luck affects others (in the traditional calendar)See also 六曜Other forms友引 【ゆういん】 Discussions Log in to talk about this word.