The kanji 爆 primarily conveys the idea of an explosion, a sudden and violent release of energy that causes a loud noise and rapid expansion. It represents something bursting forth with great force. This can relate to physical explosions, but also figurative explosions like a sudden burst of emotions or popularity.

・On-yomi (音読み): バク (baku) ・Kun-yomi (訓読み): は（ぜ）る (ha(zeru)) - to burst open, ばく（はつ） (baku(hatsu))- explosion, burst

⚫︎ 爆発 (bakuhatsu) Translation: Explosion ⚫︎ 爆弾 (bakudan) Translation: Bomb ⚫︎ 人気爆発 (ninki bakuhatsu) Translation: Sudden surge in popularity

The kanji 爆 is a 形声文字 (keisei moji), a phono-semantic compound character. The left side is the radical 火 (火) meaning "fire". The right side is 暴 (bou), which originally meant "to expose" or "to reveal." Combined, the character suggests the idea of fire being exposed, with the violent force of an explosion. This reflects its etymology from the act of fire going off into the open (爆)