Noun

• S: (n) con (an argument opposed to a proposal)
• S: (n) convict, con, inmate, yard bird, yardbird (a person serving a sentence in a jail or prison)
• S: (n) bunco, bunco game, bunko, bunko game, con, confidence trick, confidence game, con game, hustle, sting, flimflam (a swindle in which you cheat at gambling or persuade a person to buy worthless property)

Verb

• S: (v) victimize, swindle, rook, goldbrick, nobble, diddle, bunco, defraud, scam, mulct, hornswoggle, short-change, con (deprive of by deceit) "He swindled me out of my inheritance"; "She defrauded the customers who trusted her";
• S: (v) memorize, memorise, con, learn (commit to memory; learn by heart) "Have you memorized your lines for the play yet?"

Adverb

• S: (adv) con (in opposition to a proposition, opinion, etc.) "much was written pro and con"