wèi
=
w
+
ei4:
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
Mnemonic
A steel beam (工) came loose in the Eiffel Tower's bathroom (ei4). Willy Walrus (w) guards (卫) the scene with a crowbar (亅) against gazers until the construction team to repair it arrives.
工
=
二
+
丨
:
Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.
Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.
Characters with 卫 as component
卫 is not used as a component in another character.