sponge mop vs swob

sponge mop and swob both are nouns.

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

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

sponge mop: a wet mop with a sponge as the absorbent
swob: cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

Other hypernyms of sponge mop include mop, swab.

sponge mop (noun)	swob (noun)
a wet mop with a sponge as the absorbent	cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors

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