tan vs topaz

tan and topaz both are nouns.

Word	Noun	Adjective	Verb	Adverb
tan	Yes	Yes	Yes	No
topaz	Yes	No	No	No

As nouns, tan and topaz are synonyms defined as:

tan (noun)	topaz (noun)
a light brown the color of topaz	a light brown the color of topaz
ratio of the opposite to the adjacent side of a right-angled triangle	a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
a browning of the skin resulting from exposure to the rays of the sun	a yellow quartz

tan (adjective)	topaz (adjective)
of a light yellowish-brown color

tan (verb)	topaz (verb)
get a tan, from wind or sun
treat skins and hides with tannic acid so as to convert them into leather