Source : Webster's Revised Unabridged Dictionary (1913)

Reinforce \Re`in*force"\ (-f?rs"), v. t.
   See {Re["e]nforce}, v. t.

Reinforce \Re`in*force"\, n.
   See {Re["e]nforce}, n.

Source : WordNet®

reinforce
     v 1: make stronger; "he reinforced the concrete" [syn: {reenforce}]
     2: strengthen and support with rewards; "Let's reinforce good
        behavior" [syn: {reward}]