bone up vs swot

bone up is not a noun while swot is a noun.

Word	Noun	Adjective	Verb	Adverb
bone up	No	No	Yes	No
swot	Yes	No	Yes	No

As verbs, bone up and swot are synonyms defined as:

Other synonyms of bone up include bone, cram, drum, get up, grind away, mug up, swot up.

bone up (noun)	swot (noun)
	an insignificant student who is ridiculed as being affected or boringly studious

bone up (verb)	swot (verb)
study intensively, as before an exam	study intensively, as before an exam