cleaning device vs swab

cleaning device and swab both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleaning device	Yes	No	No	No
swab	Yes	No	Yes	No

As nouns, swab is a hyponym of cleaning device; that is, swab is a word with a more specific, narrower meaning than cleaning device:

cleaning device: any of a large class of implements used for cleaning
swab: cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

Other hyponyms of cleaning device include broom, carpet sweeper, sweeper, cleaning pad, pipe cleaner, pull-through, squeegee, mop, swob.

cleaning device (noun)	swab (noun)
any of a large class of implements used for cleaning	cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors
	implement consisting of a small piece of cotton that is used to apply medication or cleanse a wound or obtain a specimen of a secretion

cleaning device (verb)	swab (verb)
	wash with a swab or a mop
	apply (usually a liquid) to a surface