cheat

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To deceive by trickery; swindle.
• intransitive verb To deprive by trickery; defraud.
• intransitive verb To mislead; fool.
• intransitive verb To elude; escape.
• intransitive verb To act dishonestly; practice fraud.
• intransitive verb To violate rules deliberately, as in a game.
• intransitive verb Informal To be sexually unfaithful.
• intransitive verb Sports To position oneself closer to a certain area than is normal or expected.
• noun An act of cheating; a fraud or swindle.
• noun One who cheats; a swindler.
• noun A technique that exploits a flaw or hidden feature in a video game or computer program.
• noun Law Fraudulent acquisition of another's property.
• noun Botany Any of several species of brome, especially Bromus secalinus, an annual European grass widespread as a weed.

from The Century Dictionary.

• noun See second and third extracts under cheat-bread.
• noun A thing: usually with a distinctive word: as, a cackling cheat, a fowl; belly-cheat, an apron.
• To confiscate; escheat.
• To deceive and defraud; impose upon; trick: followed by of or out of before the thing of which one is defrauded.
• To mislead; deceive.
• To elude or escape.
• To win or acquire by cheating: as, to cheat an estate from one.
• To effect or accomplish by cheating: as, to cheat one's way through the world; to cheat one into a misplaced sympathy.
• Synonyms To cozen, gull, chouse, fool, outwit, circumvent, beguile, dupe, inveigle.
• To act dishonestly; practise fraud or trickery: as, he cheats at cards.
• noun An escheat; an unexpected acquisition; a windfall.
• noun A fraud committed by deception; a trick; an imposition; an imposture.
• noun In law, a fraud is punishable as a cheat only when it deprives another of property (thus, fraudulently inducing a marriage is not termed a cheat);
• noun when it is not such as to amount to a felony (for then it is more severely punishable); and
• noun when it is effected by some practice or method, other than mere words, which affects or may affect numbers of persons or the public at large, such as the use of false weights.
• noun A person who cheats; one guilty of fraud by deceitful practices; a swindler.
• noun A game at cards, in which the cards are played face downward, the player stating the value of the card he plays (which must always be one higher than that played by the previous player), and being subjected to a penalty if he is discovered stating it wrongly.
• noun Anything which deceives or is intended to deceive; an illusion; specifically, a false shirt-front. See dicky.
• noun The sweetbread.
• noun In botany: The darnel, Lolium temulentum.
• noun Same as chess.

from the GNU version of the Collaborative International Dictionary of English.

• noun An act of deception or fraud; that which is the means of fraud or deception; a fraud; a trick; imposition; imposture.
• noun One who cheats or deceives; an impostor; a deceiver; a cheater.
• noun (Bot.) A troublesome grass, growing as a weed in grain fields; -- called also chess. See Chess.
• noun (Law) The obtaining of property from another by an intentional active distortion of the truth.
• transitive verb To deceive and defraud; to impose upon; to trick; to swindle.
• transitive verb To beguile.
• intransitive verb To practice fraud or trickery.
• noun obsolete Wheat, or bread made from wheat.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb intransitive To violate rules in order to gain advantage from a situation.
• verb intransitive To be unfaithful to one's spouse or partner.
• verb transitive To manage to avoid something even though it seemed unlikely.
• verb To deceive; to fool; to trick.
• noun Someone who cheats (informal: cheater).
• noun A card game where the goal is to have no cards remaining in a hand, often by telling lies.
• noun A hidden means of gaining an unfair advantage in a computer game, often by entering a cheat code.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous