Noun:
1: con an argument opposed to a proposal
2: yard bird, gaolbird, jail bird, con, yardbird, jailbird, convict, inmate a person serving a sentence in a jail or prison
3: gyp, sting, bunco game, confidence game, bunco, con, confidence trick, bunko, con game, bunko game, hustle, flimflam a swindle in which you cheat at gambling or persuade a person to buy worthless property
Verb:
1: diddle, mulct, short-change, gip, defraud, victimize, scam, rook, hornswoggle, nobble, goldbrick, con, gyp, bunco, swindle 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: con, memorise, learn, memorize 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"