revision
//rɪˈvɪʒ.ən//
Noun
revisionSingular
revisionsPlural
1
The act or process of reviewing, correcting, and improving something, especially a piece of writing or a plan.
The revision of the manuscript took several weeks.
2
A revised version or form of something.
The revision of the textbook includes updated information.
3
The process of studying material again, especially in preparation for an examination (British English).
I need to do some revision before the exam next week.