Longman Dictionary of Contemporary English - revise

~ v 1 to change your opinions, plans etc because of new information or ideas  (I've revised my opinion of Bill - he's much more intelligent than I thought. | Our original forecast of this year's profits has now been revised upwards. (=we think profits will be higher) | revised estimate (=a calculation that has been changed to make it more accurate))  (Are there any questions on the revised estimates of the budget?) 2 BrE to study lessons or notes again, in order to learn them before an examination  (She's still got a lot of revising to do before the exam.) 3 to change a piece of writing by adding new information, making improvements, or correcting mistakes  (Eliot revised his American lectures for publication. | revised edition (=a new and improved form or copy of a book))  (a revised edition of the encyclopedia)  (- compare review2) - reviser n