‘遵照’ is a formal preposition meaning 'in accordance with' or 'pursuant to'. It combines 遵 (zūn), meaning 'to obey' or 'to comply with', and 照 (zhào), meaning 'to follow' or 'according to'. Together, they emphasize strict adherence to rules, instructions, laws, or authoritative guidance. The word conveys a sense of duty and formality, rarely used in casual speech.

You’ll commonly encounter ‘遵照’ in official documents, workplace directives, medical advice, academic guidelines, or government announcements—any context where compliance with an external standard is expected or required. It’s typically followed by a noun phrase indicating the source or basis of compliance (e.g., 遵照医生的建议, 遵照公司规定). Unlike more neutral terms like ‘按照’, ‘遵照’ carries a subtle tone of obligation and respect for authority.