sable vs ebony

sable and ebony both are nouns.

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

As nouns, sable and ebony are synonyms defined as:

Other synonyms of sable include coal black, jet black, pitch black, soot black.

sable (noun)	ebony (noun)
marten of northern Asian forests having luxuriant dark brown fur	a very dark black
a scarf (or trimming) made of sable	tropical tree of southern Asia having hard dark-colored heartwood used in cabinetwork
an artist's brush made of sable hairs	hard dark-colored heartwood of the ebony tree; used in cabinetwork and for piano keys
a very dark black
the expensive dark brown fur of the marten

sable (adjective)	ebony (adjective)
of a dark somewhat brownish black	of a very dark black