This is the 2016th most frequent Japanese word.
ドーン
"ドーン" (dōn): An onomatopoeic word representing a loud, booming sound or impact, like a bang or explosion.
In this sentence, 'ドーン' is used as an onomatopoeia to represent the sound of an explosion.
爆発が起きて、大きな音でドーンと鳴った。
An explosion occurred and resounded with a loud 'boom'.
Here, 'ドーン' expresses the impact or intensity of an action, emphasizing its dramatic effect.
試合のクライマックスで、彼の一撃がドーンと決まった！
At the climax of the game, his decisive blow landed with a 'bang'!
In this context, 'ドーン' metaphorically conveys a sense of steadfastness and resoluteness, resonating with confidence in one's demeanor.