dry mop vs swob

dry mop and swob both are nouns.

Word	Noun	Adjective	Verb	Adverb
dry mop	Yes	No	No	No
swob	Yes	No	Yes	No

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

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

Other hypernyms of dry mop include mop, swab.

dry mop (noun)	swob (noun)
a dry swab for dusting floors	cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

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