faucet vs mixing faucet

faucet and mixing faucet both are nouns.

Word	Noun	Adjective	Verb	Adverb
faucet	Yes	No	No	No
mixing faucet	Yes	No	No	No

As nouns, mixing faucet is a hyponym of faucet; that is, mixing faucet is a word with a more specific, narrower meaning than faucet:

Other hyponyms of faucet include cock, stopcock, turncock, hydrant, tap, water faucet, water tap.

faucet (noun)	mixing faucet (noun)
a regulator for controlling the flow of a liquid from a reservoir	single faucet for separate hot and cold water pipes