intransitive. To examine a book, map, etc., with fixed attention; to study or read earnestly or with intense concentration; to be absorbed in reading…

intransitive. To study hard or intently; to pore over. Now rare.

intransitive. To pore over books; to be studious.

intransitive. slang (originally U.S.). To apply oneself assiduously or determinedly to a task, esp. studying (frequently with down, away, etc.)…

transitive. colloquial. To work at acquiring knowledge of (a subject), esp. for a specific purpose. Now rare.

intransitive. To read or study in a concentrated manner. Now frequently with up (on a subject, book, etc.); also formerly with away at, on at.

intransitive. To work laboriously and steadily; to toil away at some monotonous task; esp. to study hard. Const. at. Also with away, on.

intransitive. To work hard at one's studies; to ‘bone up’. Also transitive, to ‘get up’, ‘mug up’ (a subject); more rarely, without up.

transferred. intransitive. To stay excessively long in bed. Also, to remain in a heated or stifling atmosphere; hence slang, to study hard.

To work hard, to ‘swot’.

intransitive to work hard, to swot; to curry favour.