Comparison to “Guard”: In English, “guard” can be very broad. A security guard at a mall, a lifeguard at a pool, and a royal guard at a palace are all “guards.” Chinese is often more specific. While
shǒuwèi can be used for a general guard, it often has a more formal and serious tone than the modern term for a security guard,
保安 (bǎo'ān).
Shǒuwèi is more fitting for military, national, or otherwise significant posts. It implies defending against a potential enemy or threat, whereas a
保安 (bǎo'ān) is more focused on maintaining order and safety.