godan verb (-gu), intransitive verb
rain down; pour down; shower down
Describes rain, light, or other things falling heavily and continuously. Often used figuratively for things like criticism or blessings coming in abundance.
雨が激しく降り注いだ。
The rain poured down heavily.
太陽の光が降り注ぐ庭で本を読んだ
I read a book in the garden where sunlight was streaming down.
彼の新作には称賛の声が降り注いだ。
His new work was showered with praise.