power point vs wall plug

power point and wall plug both are nouns.

Word	Noun	Adjective	Verb	Adverb
power point	Yes	No	No	No
wall plug	Yes	No	No	No

As nouns, wall plug is a hypernym of power point; that is, wall plug is a word with a broader meaning than power point:

power point: a wall socket
wall plug: receptacle providing a place in a wiring system where current can be taken to run electrical devices

Other hypernyms of power point include electric outlet, electric receptacle, electrical outlet, outlet, wall socket.

power point (noun)	wall plug (noun)
a wall socket	receptacle providing a place in a wiring system where current can be taken to run electrical devices