Synonyms: decrease, drop-off, lessening
Definition: a change downward
Usage: there was a decrease in his temperature as the fever subsided; there was a sharp drop-off in sales
Similar words: change, modification, alteration
Definition: an event that occurs when something passes from one state or phase to another
Usage: the change was intended to increase sales; this storm is certainly a change for the worse; the neighborhood had undergone few modifications since his last visit years ago