1. Additional troops, personnel, or resources sent to strengthen or support an existing force
   "The army waited for reinforcements to arrive"; "Police reinforcements were called to control the crowd"

1. The act or process of strengthening or supporting something
   "The reinforcement of the building's foundation took several weeks"
    
2. Something that adds strength or support
   "he used gummed reinforcements to hold the page in his notebook";
   - strengthener
    
3. An act performed to strengthen approved behaviour
   "Positive reinforcement was key to the dog's training";
   - reward
    
4. (psychology) a stimulus that strengthens or weakens the behaviour that produced it
   "Praise can be a powerful reinforcement for good behaviour";
   - reinforcing stimulus, reinforcer
    
5. (military) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
   "they called for artillery reinforcement";
   - support
    
6. Information that makes more forcible or convincing
   "his gestures provided eloquent reinforcement for his complaints"

Type of: approval, approving, blessing, confirmation, device, input, military operation, op [informal], operation, stimulant, stimulation, stimulus

Encyclopedia: Reinforcements