- obligation [äb΄li gā′shən]n.[ME obligacioun < OFr obligation < L obligatio]1. an obligating or being obligated2. a binding contract, promise, moral responsibility, etc.3. a duty imposed legally or socially; thing that one is bound to do by contract, promise, moral responsibility, etc.4. the binding power of a contract, promise, etc.5.a) the condition or fact of being indebted to another for a favor or service receivedb) a favor or service6. Lawa) an agreement or duty by which one person (the obligor) is legally bound to make payment or perform services for the benefit of another (the obligee)b) the bond, contract, or other document setting forth the terms of this agreementobligationaladj.
English World dictionary. V. Neufeldt. 2014.