An architect is a professional who designs buildings and oversees their construction. The word 建筑师 combines three characters: 建 (jiàn), meaning 'to build' or 'to construct'; 筑 (zhù), also meaning 'to build' or 'to erect' — together, 建筑 (jiànzhù) forms the noun 'construction' or 'architecture'; and 师 (shī), meaning 'master', 'expert', or 'professional', commonly used in occupational titles like 教师 (teacher) or 工程师 (engineer). So 建筑师 literally means 'master of architecture' or 'construction expert'.

This term is used formally and respectfully in professional, academic, and official contexts — for example, when referring to licensed professionals who design homes, offices, bridges, or public infrastructure. It is not used casually or for amateurs; someone sketching house plans as a hobby would not be called a 建筑师 unless formally trained and certified. In China, becoming a registered architect requires passing national exams and meeting strict educational and experience requirements.