Function: intransitive verb
Date: 1887
1 : to try to master necessary information quickly : CRAM < bone up for the exam>
2 : to renew one's skill or refresh one's memory < boned up on the speech just before giving it>
Function: intransitive verb
Date: 1887
1 : to try to master necessary information quickly : CRAM < bone up for the exam>
2 : to renew one's skill or refresh one's memory < boned up on the speech just before giving it>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012