wall socket vs wall plug

wall socket and wall plug both are nouns.

Word	Noun	Adjective	Verb	Adverb
wall socket	Yes	No	No	No
wall plug	Yes	No	No	No

As nouns, wall socket and wall plug are synonyms defined as:

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

Other synonyms of wall socket include electric outlet, electric receptacle, electrical outlet, outlet.

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