brake vs brushwood

brake and brushwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
brake	Yes	No	Yes	No
brushwood	Yes	No	No	No

As nouns, brushwood is a hypernym of brake; that is, brushwood is a word with a broader meaning than brake:

Other hypernyms of brake include brush, coppice, copse, thicket.

brake (noun)	brushwood (noun)
a restraint used to slow or stop a vehicle	a dense growth of bushes
anything that slows or hinders a process	the wood from bushes or small branches
an area thickly overgrown usually with one kind of plant
large coarse fern often several feet high; essentially weed ferns; cosmopolitan
any of various ferns of the genus Pteris having pinnately compound leaves and including several popular houseplants

brake (verb)	brushwood (verb)
cause to stop by applying the brakes
stop travelling by applying a brake