water faucet vs hydrant

water faucet and hydrant both are nouns.

Word	Noun	Adjective	Verb	Adverb
water faucet	Yes	No	No	No
hydrant	Yes	No	No	No

As nouns, water faucet and hydrant are synonyms defined as:

water faucet and hydrant: a faucet for drawing water from a pipe or cask

Other synonyms of water faucet include tap, water tap.

water faucet (noun)	hydrant (noun)
a faucet for drawing water from a pipe or cask	a discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks
	a faucet for drawing water from a pipe or cask