swab vs mop up

swab and mop up both are nouns.

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

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

Other hypernyms of swab include mop, wipe up.

swab (noun)	mop up (noun)
cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors	a concluding action
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

swab (verb)	mop up (verb)
wash with a swab or a mop	finish a task completely
apply (usually a liquid) to a surface	defeat thoroughly
	to wash or wipe with or as if with a mop