降こう雨うこううCommon wordFreq.FrequencyTop 50,000Meanings1nounrainfall; rainNeutral term for rain or precipitation, often used in weather forecasts and reports.明日あしたは広ひろい範はん囲いで降こう雨うが予よ想そうされます。Rainfall is expected over a wide area tomorrow.降こう雨う量りょうが平へい年ねんより少すくない。The amount of rainfall is less than average.