vacuum-clean vs vacuum

vacuum-clean is not a noun while vacuum is a noun.

Word	Noun	Adjective	Verb	Adverb
vacuum-clean	No	No	Yes	No
vacuum	Yes	No	Yes	No

As verbs, vacuum-clean and vacuum are synonyms defined as:

Other synonyms of vacuum-clean include hoover.

vacuum-clean (noun)	vacuum (noun)
	an electrical home appliance that cleans by suction
	a region that is devoid of matter
	an empty area or space
	the absence of matter

vacuum-clean (verb)	vacuum (verb)
clean with a vacuum cleaner	clean with a vacuum cleaner