modification modification /ˌmɑːdəfəˈkeɪʃən/

noun

1. () The act of making something different (as e.g. the size of a garment)  ( alteration , modification , adjustment )
   the act of making something different (as e.g. the size of a garment)
     After moving to a new city, he had to make several adjustments to his lifestyle.
   After moving to a new city, he had to make several adjustments to his lifestyle.
   
2. () Slightly modified copy; not an exact copy  ( modification )
   slightly modified copy; not an exact copy
    A modification of last year's model
   a modification of last year's model
   
3. An event that occurs when something passes from one state or phase to another  ( modification , alteration , change )
   an event that occurs when something passes from one state or phase to another
    The change was intended to increase sales
   the change was intended to increase sales
    This storm is certainly a change for the worse
   this storm is certainly a change for the worse
    The neighborhood had undergone few modifications since his last visit years ago
   the neighborhood had undergone few modifications since his last visit years ago
   
4. The grammatical relation that exists when a word qualifies the meaning of the phrase  ( limiting , modification , qualifying )
   the grammatical relation that exists when a word qualifies the meaning of the phrase