editing
n. uncountablen. the process of checking and changing a piece of writing, a film, or music to make it better. You do this to fix mistakes and organize the parts before other people see the final version.
n. the process of selecting, preparing, and modifying written, visual, or audio material for publication or presentation. It involves correcting errors and improving the overall structure and clarity of the work.
The final stage of the project is careful editing.
After finishing the first draft of her novel, she spent three months on editing to improve the flow of the story.
Professional film editing requires a keen eye for pacing and rhythm, as the way scenes are spliced together can fundamentally alter the audience's emotional response to the narrative.
Primarily uncountable when referring to the general process; occasionally used as a gerund-noun to describe the specific act of revising a text.