› [T] LAW to force someone to do something, or to make it necessary for someone to do something: be obliged to do sth Employers are obliged to pay employees sick pay. Sellers are not legally obliged to accept the highest offer. Companies are obliged by law to carry out regular safety checks. a law/treaty/agreement obliges sth The law obliges full disclosure of political contributions. › [I or T] to please or help someone, especially by doing something they have asked you to do: He went to the conference to oblige his boss. We needed some help with our accounts and she was only too happy to oblige.