爆发 (bào fā)

to break out; to erupt; to explode; to burst out

Character breakdown

爆 (bào) · 19 strokes

Phonosemantic compound. 火 represents the meaning and 暴 represents the sound.
发 (fā) · 5 strokes

Simplified form of both 發 (send out) and 髮 (hair). Visually similar to 犮, the bottom component of 髮.