carpet sweeper vs sweeper

carpet sweeper and sweeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
carpet sweeper	Yes	No	No	No
sweeper	Yes	No	No	No

As nouns, carpet sweeper and sweeper are synonyms defined as:

carpet sweeper and sweeper: a cleaning implement with revolving brushes that pick up dirt as the implement is pushed over a carpet

carpet sweeper (noun)	sweeper (noun)
a cleaning implement with revolving brushes that pick up dirt as the implement is pushed over a carpet	little-known nocturnal fish of warm shallow seas with an oblong compressed body
	a cleaning implement with revolving brushes that pick up dirt as the implement is pushed over a carpet
	an employee who sweeps (floors or streets etc.)