Adverb (fukushi), Adverb taking the 'to' particle
drumming (noise); beating; pounding; banging; booming; stamping
Onomatopoeic or mimetic word
だれかがドアをどんどんたたいている。Someone is battering at the door. rapidly; quickly; steadily
Onomatopoeic or mimetic word
continuously; one after the other; in succession
Onomatopoeic or mimetic word
Also written ドンドン