诗侣 (shī lǚ) literally combines 诗 (shī), meaning 'poem' or 'poetry', and 侣 (lǚ), meaning 'companion' or 'partner'. Together, it refers to a poetic companion — someone with whom one shares a deep bond through writing, appreciating, or discussing poetry. It conveys intimacy, mutual inspiration, and artistic kinship, often implying emotional closeness and shared aesthetic sensibility rather than just casual acquaintance.

The term is literary and somewhat elevated in register, commonly found in classical or modern lyrical contexts — such as poetry collections, essays on literary friendship, or romantic or intellectual partnerships centered on verse. While it can describe friends, spouses, or mentors, it emphasizes the poetic dimension of the relationship. It is not used for professional collaborators like editors or publishers unless their connection is fundamentally poetic and personal.