• 劇場げきじょう — theater
• 悲劇ひげき — tragedy
• 喜劇きげき — comedy
• 演劇えんげき — dramatic performance
• 劇薬げきやく — strong/violent medicine
• 劇的げきてき — dramatic
• 攻撃こうげき — attack

劇 is a phono-semantic compound: 刂 (sword) gives the idea of sharpness or intensity, while 豦 contributes the phonetic and semantic sense of “play” or “drama.”

The kanji expresses extremes — from theater performances to dramatic, even violent, events.