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bone up

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phrasal verb [intransitive] informal
Word Forms
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present tense
I/you/we/theybone up
he/she/itbones up
present participleboning up
past tenseboned up
past participleboned up
  1. to study hard or learn about something in order to prepare for a test, meeting etc

    He's boning up for his final exams.

    bone up on:

    She boned up on the company before the interview.

See also main entry: bone

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major on (doing) sth

to have or do a lot of something; to focus on a particular thing

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