to guard / to protect / to defend / abbr. for 衛生|卫生, hygiene / health / abbr. for 衛生間|卫生间, toilet / surname Wei / vassal state during the Zhou Dynasty (1066-221 BC), located in present day Henan and Hebei Provinces
lightning / electricity / electric (bound form) / to get (or give) an electric shock / phone call or telegram etc / to send via telephone or telegram etc