Contract law

A contract is a legally binding exchange of promises or agreement between parties that the law will enforce. Contract law is based on the Latin phrase pacta sunt servanda (pacts must be kept). Breach of contract is recognised by the law and remedies can be provided. Almost everyone makes contracts every day. Sometimes written contracts are required, e.g., when buying a house. However the vast majority of contracts can be and are made orally, like buying a law text book, or a coffee at a shop. Contract law can be classified, as is habitual in civil law systems, as part of a general law of obligations (along with tort, unjust enrichment or restitution).
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Noun
1. that branch of jurisprudence that studies the rights and obligations of parties entering into contracts
(hypernym) jurisprudence, law, legal philosophy
(class) acceptance

the body of law relating to contracts.

That body of law which regulates the enforcement of contracts. - (read more on Contract law)