‘老兵’ literally means 'old soldier' — combining 老 (lǎo, 'old' or 'veteran', used here to denote long service and experience) and 兵 (bīng, 'soldier' or 'troop'). Though the character 老 suggests age, in this compound it emphasizes seniority, experience, and enduring service rather than chronological age. It refers specifically to someone who has served in the military for a long time or completed their compulsory service and is now retired or honorably discharged.

The term carries respectful connotations and is commonly used in formal contexts such as Veterans’ Day commemorations, news reports about military history, or community recognition programs. Unlike generic terms like 军人 (jūnrén, 'military personnel'), 老兵 highlights continuity, sacrifice, and institutional memory. It’s often paired with honorifics like 老兵同志 (lǎo bīng tóngzhì, 'Comrade Veteran') or used in titles of documentaries and memoirs.