From WordNet (r) 3.0 (2006) :
convict
n 1: a person serving a sentence in a jail or prison [syn:
convict, con, inmate, yard bird, yardbird]
2: a person who has been convicted of a criminal offense
v 1: find or declare guilty; "The man was convicted of fraud and
sentenced" [ant: acquit, assoil, clear, discharge,
exculpate, exonerate]