Letters that make bone up
o, b, e, n, p, u are letters that make 'bone up'
1 possible definitions for 'bone up'
Under this definition, bone up is a verb and has the following properties:
grind away, swot up, drum, swot, get up, cram, bone, mug up have the same meaning as 'bone up'
'bone up' can be a type of study, hit the books.
cram is a verb group of bone up.
"I had to bone up on my Latin verbs before the final exam"