1.  con(n = noun.communication) - an argument opposed to a proposal;
is a kind of argument, statement
Antonym: pro

2.  con(n = noun.person) convict, inmate, yard bird, yardbird - a person serving a sentence in a jail or prison;
is a kind of captive, prisoner
has particulars: lifer, trusty

3.  con(n = noun.act) bunco, bunco game, bunko, bunko game, con game, confidence game, confidence trick, flimflam, gyp, hustle, sting - a swindle in which you cheat at gambling or persuade a person to buy worthless property;
is a kind of cheat, rig, swindle
has particulars: sting operation
Derived form verb con₁

1.  con(v = verb.social) bunco, defraud, diddle, gip, goldbrick, gyp, hornswoggle, mulct, nobble, rook, scam, short-change, swindle, victimize - 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"
is one way to cheat, chisel, rip off
Derived form noun con₃
Sample sentences: They con him of all his money

2.  con(v = verb.cognition) learn, memorise, memorize - commit to memory; learn by heart; "Have you memorized your lines for the play yet?"
is one way to hit the books, study
Sample sentences: Somebody ----s something

   con(r = adv.all) - in opposition to a proposition, opinion, etc.; "much was written pro and con"
Antonym: pro

   Against the affirmative side; in opposition; on the negative side; -- The antithesis of pro, and usually in connection with it. See Pro. [1913 Webster]

1.  To know; to understand; to acknowledge. [1913 Webster]
"Of muses, Hobbinol, I con no skill." [1913 Webster]
"They say they con to heaven the highway." [1913 Webster]

2.  To study in order to know; to peruse; to learn; to commit to memory; to regard studiously. [1913 Webster]
"Fixedly did look
Upon the muddy waters which he conned
As if he had been reading in a book." [1913 Webster]
"I did not come into Parliament to con my lesson." [1913 Webster]

   To conduct, or superintend the steering of (a vessel); to watch the course of (a vessel) and direct the helmsman how to steer. [1913 Webster]

con, n. & v. sl.
--n. a confidence trick.
--v.tr. (conned, conning) swindle; deceive (conned him into thinking he had won).

Idiom:
con man = confidence man.

con, n., prep., & adv.
--n. (usu. in pl.) a reason against.
--prep. & adv. against (cf. pro(2)).

con, n. sl. a convict.

con, v.tr. (US conn) (conned, conning) Naut. direct the steering of (a ship).

con, v.tr. (conned, conning) archaic (often foll. by over) study, learn by heart (conned his part well).

Etymology:
ME cunn-, con, forms of can(1)

N  impurity, uncleanness, immodesty, grossness, indelicacy, indecency, impudicity, obscenity, ribaldry, Fescennine, smut, bawdry, double entente, equivoque, concupiscence, lust, carnality, flesh, salacity, pruriency, lechery, lasciviency, lubricity, Sadism, sapphism, incontinence, intrigue, faux pas, amour, amourette, gallantry, debauchery, libertinish, libertinage, fornication, liaison, wenching, venery, dissipation, seduction, defloration, defilement, abuse, violation, rape, incest, prostitution, social evil, harlotry, stupration, whoredom, concubinage, cuckoldom, adultery, advoutry, crim, con, free love, seraglio, harem, brothel, bagnio, stew, bawdyhouse, cat house, lupanar, house of ill fame, bordel, bordello, impure, unclean, not to be mentioned to ears polite, immodest, shameless, indecorous, indelicate, indecent, Fescennine, loose, risque, coarse, gross, broad, free, equivocal, smutty, fulsome, ribald, obscene, bawdy, pornographic, concupiscent, prurient, lickerish, rampant, lustful, carnal, carnal-minded, lewd, lascivious, lecherous, libidinous, erotic, ruttish, salacious, Paphian, voluptuous, goatish, must, musty, unchaste, light, wanton, licentious, debauched, dissolute, of loose character, of easy virtue, frail, gay, riggish, incontinent, meretricious, rakish, gallant, dissipated, no better than she should be, on the town, on the streets, on the pave, on the loose, adulterous, incestuous, bestial.

N  assent, assentment, acquiescence, admission, nod, accord, concord, concordance, agreement, affirmance, affirmation, recognition, acknowledgment, avowal, confession of faith, unanimity, common consent, consensus, acclamation, chorus, vox populi, popular belief, current belief, current opinion, public opinion, concurrence, cooperation, ratification, confirmation, corroboration, approval, acceptance, visa, indorsement, consent, pressure to conform, herd instinct, peer pressure, assenting, of one accord, of one mind, of the same mind, at one with, agreed, acquiescent, content, willing, uncontradicted, unchallenged, unquestioned, uncontroverted, carried, agreed, nem, con, nemine contradicente unanimous, agreed on all hands, carried by acclamation, affirmative, yes, yea, ay, aye, true, good, well, very well, very true, well and good, granted, even so, just so, to be sure, 'thou hast said', you said it, you said a mouthful, truly, exactly, precisely, that's just it, indeed, certainly, you bet, certes, ex concesso, of course, unquestionably, assuredly, no doubt, doubtless, naturally, natch, be it so, so be it, so let it be, amen, willingly, affirmatively, in the affirmative, OK, all right, might as well, why not? with one consent, with one voice, with one accord, unanimously, una voce, by common consent, in chorus, to a man, nem, con, nemine contradicente, nemine dissentiente, without a dissentient voice, as one man, one and all, on all hands, avec plaisir, chi tace accousente, the public mind is the creation of the Master-Writ, you bet your sweet ass it is, what are we waiting for? whenever you're ready, anytime you're ready, assent, assentment, acquiescence, admission, nod, accord, concord, concordance, agreement, affirmance, affirmation, recognition, acknowledgment, avowal, confession of faith, unanimity, common consent, consensus, acclamation, chorus, vox populi, popular belief, current belief, current opinion, public opinion, concurrence, cooperation, ratification, confirmation, corroboration, approval, acceptance, visa, indorsement, consent, pressure to conform, herd instinct, peer pressure, assenting, of one accord, of one mind, of the same mind, at one with, agreed, acquiescent, content, willing, uncontradicted, unchallenged, unquestioned, uncontroverted, carried, agreed, nem, con, nemine contradicente unanimous, agreed on all hands, carried by acclamation, affirmative, yes, yea, ay, aye, true, good, well, very well, very true, well and good, granted, even so, just so, to be sure, 'thou hast said', you said it, you said a mouthful, truly, exactly, precisely, that's just it, indeed, certainly, you bet, certes, ex concesso, of course, unquestionably, assuredly, no doubt, doubtless, naturally, natch, be it so, so be it, so let it be, amen, willingly, affirmatively, in the affirmative, OK, all right, might as well, why not? with one consent, with one voice, with one accord, unanimously, una voce, by common consent, in chorus, to a man, nem, con, nemine contradicente, nemine dissentiente, without a dissentient voice, as one man, one and all, on all hands, avec plaisir, chi tace accousente, the public mind is the creation of the Master-Writ, you bet your sweet ass it is, what are we waiting for? whenever you're ready, anytime you're ready.

VB  remember, mind, retain the memory of, retain the remembrance of, keep in view, recognize, recollect, bethink oneself, recall, call up, retrace, look back, trace back, trace backwards, think back, look back upon, review, call upon, recall upon, bring to mind, bring to remembrance, carry one's thoughts back, rake up the past, have in the thoughts, hold in the thoughts, bear in the thoughts, carry in the thoughts, keep in the thoughts, retain in the thoughts, have in the memory, hold in the memory, bear in the memory, carry in the memory, keep in the memory, retain in the memory, have in the mind, hold in the mind, bear in the mind, carry in the mind, keep in the mind, retain in the mind, hold in remembrance, be in one's thoughts, live in one's thoughts, remain in one's thoughts, dwell in one's thoughts, haunt one's thoughts, impress one's thoughts, be in one's mind, live in one's mind, remain in one's mind, dwell in one's mind, haunt one's mind, impress one's mind, dwell in one's memory, sink in the mind, run in the head, not be able to get out of one's head, be deeply impressed with, rankle, recur to the mind, flash on the mind, flash across the memory, remind, suggest, prompt, put in mind, keep in mind, bring to mind, fan the embers, call up, summon up, rip up, renew, infandum renovare dolorem, jog the memory, flap the memory, refresh the memory, rub up the memory, awaken the memory, pull by the sleeve, bring back to the memory, put in remembrance, memorialize, task the memory, tax the memory, get at one's fingers' ends, have at one's fingers', learn at one's fingers', know one's lesson, say one's lesson, repeat by heart, repeat by rote, say one's lesson, repeat, repeat as a parrot, have at one's fingers' ends, have at one's finger tips, commit to memory, memorize, con over, con, fix in the memory, rivet in the memory, imprint in the memory, impress in the memory, stamp in the memory, grave in the memory, engrave in the memory, store in the memory, treasure up in the memory, bottle up in the memory, embalm in the memory, enshrine in the memory, load the memory with, store the memory with, stuff the memory with, burden the memory with, redeem from oblivion, keep the memory alive, keep the wound green, pour salt in the wound, reopen old wounds', tangere ulcus, keep up the memory of, commemorate, make a note of, jot a note, pen a memorandum.

allegro con spirito, arroz con pollo, chili con carne, con artist, con brio, con game, con man, mod con, nem con, pro and con