modification

noun

1. 1

   the act of making something different (as e.g. the size of a garment)

2. 2

   slightly modified copy; not an exact copy

   a modification of last year's model

3. 3

   an event that occurs when something passes from one state or phase to another

   the change was intended to increase sales

   this storm is certainly a change for the worse

4. 4

   the grammatical relation that exists when a word qualifies the meaning of the phrase