Alteration (noun)

1. A change or modification to something.
2. The act or process of changing or making something different.

Origin:

Middle english: from old french, from latin alteratio(n-), from alterare 'to alter'.

Examples:

1. The alteration to the original plan was necessary due to budget constraints.
2. The alteration of her dress made it fit her perfectly.
3. The alteration of the landscape due to urbanization was dramatic.
4. The alteration of the building required several permits and inspections.
5. The alteration of his diet helped him to lose weight and improve his health.