socket wrench vs spanner

socket wrench and spanner both are nouns.

Word	Noun	Adjective	Verb	Adverb
socket wrench	Yes	No	No	No
spanner	Yes	No	No	No

As nouns, spanner is a hypernym of socket wrench; that is, spanner is a word with a broader meaning than socket wrench:

socket wrench: a wrench with a handle onto which sockets of different sizes can be fitted
spanner: a hand tool that is used to hold or twist a nut or bolt

Other hypernyms of socket wrench include wrench.

socket wrench (noun)	spanner (noun)
a wrench with a handle onto which sockets of different sizes can be fitted	a hand tool that is used to hold or twist a nut or bolt