bone up vs swot up

bone up and swot up both are verbs.

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

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

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

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