Refers to a deep, resonant, continuous loud sound such as thunder, engines, or a waterfall.
I heard the rumble of thunder in the distance.
The roar of the airplane echoed through the sky.
Used for a strong, rhythmic physical sensation, especially a heartbeat or pulse, often with emotional intensity.
My heart wouldn't stop pounding from nervousness.
Standard kanji spelling for the noun form of 轟く.
Kana spelling is acceptable, especially in casual or sound-focused writing.
Noun form of the verb 轟く (とどろく), which is of native Japanese origin. The exact derivation is uncertain, but it is likely sound-symbolic, imitating a deep rumbling noise.