雨子[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
ひと雨[hitoame] shower
雨雲[amagumo] rain cloud
雨蛙[amagaeru] tree frog (esp. the Japanese tree frog, Hyla japonica)
雨笠[amagasa] rain hat

雨具[amagu] rain gear
雨空[amazora] rainy sky
雨靴[amagutsu] waterproof shoes
雨戸[amado] sliding storm shutter

麹黴[koujikabi] yeast plant
青黴[aokabi] blue mold
黴菌[baikin] germ
黴臭い[kabikusai] smelling of mold
黴雨[baiu] rainy season

黴毒[baidoku] syphilis
黴る[kabiru] to become moldy or musty (mouldy)
黒黴[kurokabi] black mold
黴が生える[kabigahaeru] to get moldy