noun, verb · to guard, protect, or defend

“保卫”中的“卫”字有守护、保护的意思。

abbreviation, adjective · abbreviation for hygiene or health (卫生 wèi​shēng)

他从事环卫工作多年。

noun · abbreviation for toilet or restroom (卫生间 wèi​shēng​jiān)

我租的房子是两室一卫。

proper name · a Chinese surname

卫青是汉朝著名的将军。

place name · vassal state during the Zhou Dynasty (1066–221 BC), located in present-day Henan and Hebei Provinces

卫国在周朝时期曾是一个诸侯国。