WordWeb Online

1. The act of decreasing or reducing something
   - decrease, diminution, reduction

1. Give up or retire from a position
   "The Secretary of the Navy will step down next month";
   - leave office, quit, resign
    
2. Reduce the level, intensity, size or scope of
   "step down a crisis";
   - de-escalate, weaken

Derived forms: step-downs, steps down, stepping down, stepped down

Type of: change of magnitude, decrease, depart, leave, lessen, minify, pull up stakes