‘陌路’ literally means 'strange path'—'陌' (mò) originally referred to a field boundary or an unfamiliar road, and '路' (lù) means 'road' or 'path'. Together, the term has evolved metaphorically to describe people who were once close but have grown emotionally distant, becoming as unfamiliar as strangers on separate paths. It conveys a sense of poignant estrangement, often implying regret, loss of connection, or irreversible separation.

This word is commonly used in literary, poetic, or reflective contexts—not in casual daily speech—to describe severed friendships, broken family ties, or former lovers who no longer recognize each other’s presence. It carries emotional weight and suggests that the relationship has faded not just in practice but in feeling: two people walking parallel lives with no shared understanding left. Because it evokes imagery of physical distance mirroring inner alienation, it appears frequently in essays, songs, and novels about memory, time, and human disconnection.