1. (

• support ,
• reinforcement ,
• reenforcement

) 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 support" ;

2. (

• reinforcement ,
• reenforcement

) information that makes more forcible or convincing; "his gestures provided eloquent reinforcement for his complaints" ;

3. (

• reinforcing_stimulus ,
• reinforcer ,
• reinforcement

) (psychology) a stimulus that strengthens or weakens the behavior that produced it ;

4. (

• strengthener ,
• reinforcement

) a device designed to provide additional strength; "the cardboard backing was just a strengthener"; "he used gummed reinforcements to hold the page in his notebook" ;

5. (

• reward ,
• reinforcement

) an act performed to strengthen approved behavior ;