How do you say rain in Korean?
— 비 (bi); 비 (날씨)

Generic synonyms for rain in Korean
fall넘어지다 (neom-eo-ji-da); 쓰러지다 (sseu-reo-ji-da); 떨어지다 (ddeol-eo-ji-da); 하락하다 (harak-hada)
Specialized synonyms for rain in Korean
spit침을뱉다 (chim-eul-baet-da)