我校 is a formal, written Chinese term meaning 'our school'. It is commonly used in official announcements, academic contexts, or institutional communications (e.g., '我校将于下周举办运动会' — 'Our school will hold a sports meet next week'). The 我 here functions as a possessive pronoun ('our'), and 校 is short for 学校 ('school'). This term is more formal than 我们学校 and is typical in news reports, school notices, and official documents.