brace wrench vs spanner

brace wrench and spanner both are nouns.

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

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

brace wrench: a wrench shaped like a brace (has a handle shaped like a crank) and a socket head
spanner: a hand tool that is used to hold or twist a nut or bolt

Other hypernyms of brace wrench include wrench.

brace wrench (noun)	spanner (noun)
a wrench shaped like a brace (has a handle shaped like a crank) and a socket head	a hand tool that is used to hold or twist a nut or bolt