‘旧谊’ literally combines ‘旧’ (jiù), meaning ‘old’ or ‘former’, and ‘谊’ (yì), meaning ‘friendship’ or ‘comradely bond’. Together, it refers to a friendship that has lasted over many years—often one formed in youth, school, or earlier life stages. It carries warm, respectful, and slightly formal connotations, emphasizing continuity, mutual understanding, and shared history.

This term is commonly used in written Chinese and formal speech—such as reunion speeches, letters, or nostalgic reflections—to honor enduring relationships. It’s rarely used in casual daily conversation among young people; instead, it appears in contexts like alumni gatherings, diplomatic exchanges between long-acquainted nations, or literary descriptions of lifelong bonds. Unlike generic terms like ‘朋友’ (péngyou), ‘旧谊’ evokes sentimentality, gratitude, and moral weight, suggesting the friendship has withstood time and change.