隣の芝生は青い[tonarinoshibafuhaaoi] the grass is always greener on the other side
燕青拳[enseiken] Yangqingquan
青竜蝦[shako] mantis shrimp (any marine crustacean of order Stomatopoda, esp. the species Oratosquilla oratoria)
灰青色[haiseishoku] grayish blue
紺青[konjou] navy blue

青眼[seigan] aiming at the eye (with a sword)
青い[aoi] blue
青い鳥[aoitori] bluebird (Sialia spp.)
青褪める[aozameru] to become pale

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