维修 (wéi xiū) is a verb meaning 'to repair' or 'to perform maintenance on something that is broken, worn out, or malfunctioning.' The character 维 (wéi) originally means 'to maintain' or 'to preserve,' while 修 (xiū) means 'to repair,' 'to fix,' or 'to improve.' Together, they emphasize restoring functionality and ensuring continued operation — not just quick fixes, but systematic upkeep. It’s commonly used for machines, vehicles, electronic devices, buildings, and infrastructure.

This term carries a formal, practical tone and is frequently heard in technical, industrial, and service contexts — for example, in announcements ('电梯正在维修' — 'The elevator is under repair'), service contracts, or customer support. Unlike the more casual 修理 (xiū lǐ), 维修 often implies scheduled, professional, or preventive work rather than emergency fixes. It can also function as a noun meaning 'repair work' or 'maintenance service' when used with measure words or in compound nouns like 维修费 (wéi xiū fèi, 'repair fee').