1. changes or corrections made to improve something, especially a text or plan
Usage: plural of revision
2. the process of reviewing and studying material again, especially for an exam
Usage: British English; academic context

Examples

• The editor suggested several revisions to the manuscript.
• After multiple revisions, the contract was finally approved.
• The student made careful revisions to her essay before submitting it.
• The software update includes important security revisions.
• She spent the weekend doing revisions for her history exam.
• The revisions to the building plans were completed last week.
• His revisions improved the clarity of the argument significantly.