hand-held vacuum cleaner vs handheld vacuum

hand-held vacuum cleaner and handheld vacuum both are nouns.

Word	Noun	Adjective	Verb	Adverb
hand-held vacuum cleaner	Yes	No	No	No
handheld vacuum	Yes	No	No	No

As nouns, hand-held vacuum cleaner and handheld vacuum are synonyms defined as:

hand-held vacuum cleaner and handheld vacuum: a lightweight vacuum cleaner either powered from rechargeable batteries or mains power, popular for cleaning up smaller spills.

Other synonyms of hand-held vacuum cleaner include hand-held vacuum, handheld vacuum cleaner.

hand-held vacuum cleaner (noun)	handheld vacuum (noun)
a lightweight vacuum cleaner either powered from rechargeable batteries or mains power, popular for cleaning up smaller spills.	a lightweight vacuum cleaner either powered from rechargeable batteries or mains power, popular for cleaning up smaller spills.