Noun:
1: con an argument opposed to a proposal
2: jailbird, yard bird, jail bird, inmate, gaolbird, convict, yardbird, con a person serving a sentence in a jail or prison
3: confidence game, flimflam, bunko game, bunko, con, hustle, gyp, bunco, confidence trick, sting, bunco game, con game a swindle in which you cheat at gambling or persuade a person to buy worthless property
Verb:
1: gyp, short-change, gip, victimize, bunco, scam, hornswoggle, diddle, defraud, goldbrick, con, mulct, swindle, rook, nobble deprive of by deceit; "He swindled me out of my inheritance"; "She defrauded the customers who trusted her"; "the cashier gypped me when he gave me too little change"
2: memorize, learn, memorise, con commit to memory; learn by heart; "Have you memorized your lines for the play yet?"
Adverb:
1: in opposition, con on the negative side; "much was written pro and con"