A party's failure to perform some contracted-for or agreed-upon act, or his failure to comply with a duty imposed by law which is owed to another or to society. 682 F. 2d 883, 885.
anticipatory breach see anticipatory breach (of contract).
breach of duty a failure to perform a duty owed to another or to society; a failure to exercise that care which a reasonable man would exercise under similar circumstances. 56 A. 498, 500.
breach of promise failure to do what one promises, where he has promised it in order to induce action in another. The phrase is often used as a shorthand for "breach of the promise of marriage."
breach of the covenant of warranty a failure of the seller's guarantee of good title which occurs when the buyer [covenantee] is evicted by a person claiming under a paramount title; since it is a future covenant it is not breached until that eviction occurs; see Cribbet & Johnson, Principles of the Law of Property 244-45 (3rd ed. 1989).
breach of the peace an offense embracing "a great variety of conduct destroying or menacing public order and tranquility. It includes not only violent acts but acts and words likely to produce violence in others." 310 U. S. 296, 308. In its broadest sense the term refers to any criminal offense (or at least any indictable offense, 207 U.S. 425). Today the term is generally used to describe conduct which unreasonably threatens the public peace and which lacks a specific criminal label; by statute such conduct is often called "disorderly conduct" as the specific criminal offense. See, e.g., New York Penal Law §240.20. The term has been defined by state courts as "disturbances of the public peace violative of order and decency or decorum," 147 N.W. 2d 886, 892; "any violation of any law enacted to preserve peace and good order." 236 P. 57, 59. It "signifies disorderly, dangerous conduct disruptive of public peace." 261 A. 2d 731, 739. See also fighting words; slander.
breach of trust "violation by a trustee of a duty which equity lays upon him, whether willful and fraudulent, or done through negligence, or arising through mere oversight and forgetfulness." 150 P. 2d 604, 648.
breach of trust with fraudulent intent "a larceny after trust, which includes all of the elements of larceny except the unlawful taking in the beginning." 31 S.E. 2d 906, 907.
breach of warranty "infraction of an express or implied agreement as to the title, quality, content or condition of a thing sold or bailed." 151 N.W. 2d 477, 482. A warranty is a guarantee and is breached when the thing so guaranteed is deficient according to the terms of the warranty. See U.C.C. §2-312 et seq.
constructive breach this occurs when the party bound to perform does some act that disables him from performing under the contract or announces in advance of his time for performing that he has no intention to do so. This creates an anticipatory breach. 19 F. 2d 388, 389.
material breach in contract law a breach that is substantial and operates to excuse further performance by the aggrieved party. A material breach destroys the value of the contract and gives rise to an action for breach of contract.
partial breach a breach that gives rise to a claim for damages but that is so slight that it does not substantially impair the value of the contract to the injured party and thus does not give the injured party cause to abandon the whole contract. 11 Williston, Contracts 8-9 (4th ed. 1990). For instance, if a person contracts to buy a white yacht, and is delivered a yellow yacht, he might have to purchase the yacht and seek damages for the cost of painting the yacht white.