what is reinforce mean
reinforce reÂ·inÂ·force (rÄ'Ä­n-fÃ´rs') v. reÂ·inÂ·forced, reÂ·inÂ·forcÂ·ing, reÂ·inÂ·forcÂ·es. To give more force or effectiveness to something; strengthen. To reward an individual, especially an experimental subject, with a reinforcer subsequent to a desired response or performance. To stimulate a response by means of a reinforcer.