sable brush vs sable

sable brush and sable both are nouns.

Word	Noun	Adjective	Verb	Adverb
sable brush	Yes	No	No	No
sable	Yes	Yes	No	No

As nouns, sable brush and sable are synonyms defined as:

Other synonyms of sable brush include sable's hair pencil.

sable brush (noun)	sable (noun)
an artist's brush made of sable hairs	marten of northern Asian forests having luxuriant dark brown fur
	a scarf (or trimming) made of sable
	an artist's brush made of sable hairs
	a very dark black
	the expensive dark brown fur of the marten

sable brush (adjective)	sable (adjective)
	of a dark somewhat brownish black