dust mop vs swab

dust mop and swab both are nouns.

Word	Noun	Adjective	Verb	Adverb
dust mop	Yes	No	No	No
swab	Yes	No	Yes	No

As nouns, swab is a hypernym of dust mop; that is, swab is a word with a broader meaning than dust mop:

dust mop: a dry swab for dusting floors
swab: cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

Other hypernyms of dust mop include mop, swob.

dust mop (noun)	swab (noun)
a dry swab for dusting floors	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

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