1. prisoner, person convicted of a crime. prove someone guilty of a crime; convince someone of error or wrongdoing, instill someone with a sense of guilt; declare guilty. convictcon*vict (k&obreve;n*v&ibreve;kt), p.a. [l. convictus, p. p. of convincere to convict, prove. see: convice.] proved or found guilty; convicted. [obs.] convict by flight, and rebel to all law.convict convict (k&obreve;nv&ibreve;kt), n