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1. Become smaller or less in size, extent, or range
   "The amount of homework decreased towards the end of the semester";
   - diminish, lessen, fall
    
2. Make become smaller
   "He decreased his staff";
   - lessen, minify

1. A change downward
   "there was a decrease in his temperature as the fever subsided";
   - lessening, drop-off
    
2. A process of becoming smaller or shorter
   - decrement
    
3. The amount by which something decreases
   - decrement
    
4. The act of decreasing or reducing something
   - diminution, reduction, step-down

Derived forms: decreased, decreases, decreasing

Type of: alter, alteration, amount, change, change magnitude, change of magnitude, modification, modify, physical process, process

Antonym: increase, increment

Encyclopedia: Decrease