What word denotes a person who lives in solitude?

The term that denotes a person who lives in solitude is "recluse." A recluse is someone who intentionally seeks to live away from society, often for personal reasons or a preference for solitude. This lifestyle can be chosen for various motivations, including introspection, creativity, or simply a desire for privacy and peace away from social interactions.

In contrast, "maverick" refers to an independent-minded individual who often rejects conventions or norms, but not necessarily someone who lives in solitude. "Marginal" relates to something that is on the edge or periphery, often describing situations or people that are not central or important. Finally, "ostracism" describes the act of excluding someone from a society or group, rather than depicting someone who has chosen a solitary existence. Therefore, "recluse" is the most accurate choice to describe someone living in solitude.