保卫 (bǎowèi) is a verb meaning 'to defend' or 'to protect', often implying active, determined safeguarding against threats. The character 保 (bǎo) means 'to keep safe; to preserve', while 卫 (wèi) means 'to guard; to defend' — together, they form a compound emphasizing vigilant, responsible protection. It carries a formal, serious tone and is commonly used in contexts involving security, national defense, public safety, or institutional responsibility.

This word frequently appears in official, political, or organizational language — for example, in phrases like 保卫祖国 (defend the motherland) or 保卫人民生命财产安全 (protect people’s lives and property). It is rarely used for casual, everyday protection (e.g., shielding someone from rain), where words like 保护 (bǎohù) are more appropriate. 保卫 implies duty, authority, and sometimes collective action, making it especially common in military, medical, or emergency-response settings — such as healthcare workers defending patients’ well-being during outbreaks.