bomb, burst open, pop, split
爆 centers on a sudden, violent release of energy: an explosion, bursting open, popping, or splitting apart. The core idea is something contained breaking outward with force.
爆 combines 火 (fire) with 暴, which likely contributes both sound and the idea of sudden violence or bursting. The character expresses explosion or bursting caused by fire.
Fire 火 on the left and the violent, bursting shape 暴 on the right: imagine a fire heating a container until it bursts open with a loud pop.
For バク, imagine a bomb going off with a loud 'back!' sound: back -> バク, and the explosion bursts everything open.
explosion; detonation; blast; blowing up; eruption
bomb
bombing (raid)
roar of laughter (from multiple people); burst of laughter; uproarious laughter
destructive blast; blowing up; explosion
atomic bomb; A-bomb
burst of laughter; roar of laughter
suicide bombing (e.g. crashing one's plane into a target); self-destruction; blowing oneself up
enormous breasts
being bombed
aerial bombing
death from explosion; death from bombing
ignition; detonation; triggering; explosion
(sound of an) explosion or detonation; roar (of a machine)
explosive; blasting powder
exploding
racing noisily (in a car, motorcycle, etc.); roaring (e.g. down the street)
sudden emergence; sudden formation; coming out of nowhere; bursting onto the scene
bomb blast; blast (from an explosion); shock wave
sleeping like a log; (being) fast asleep (bombed, crashed)