hose down vs hose

hose down is not a noun while hose is a noun.

Word	Noun	Adjective	Verb	Adverb
hose down	No	No	Yes	No
hose	Yes	No	Yes	No

As verbs, hose down and hose are synonyms defined as:

hose down (noun)	hose (noun)
	socks and stockings and tights collectively (the British include underwear)
	a flexible pipe for conveying a liquid or gas
	man's close-fitting garment of the 16th and 17th centuries covering the legs and reaching up to the waist; worn with a doublet

hose down (verb)	hose (verb)
water with a hose	water with a hose