昨さく夕ゆうさくゆうMeanings1noun, adverbyesterday evening; last nightRefers to the evening or night of the previous day. Often used in written or slightly formal contexts.昨さく夕ゆう、彼かれから電でん話わがあった。I got a call from him yesterday evening.昨さく夕ゆうの雨あめで道みちが濡ぬれている。The road is wet from last night's rain.