plural of obligation

The act of binding oneself by a social, legal, or moral tie to someone.

(transitive, Canada, US, Scotland) To bind, compel, constrain, or oblige by a social, legal, or moral tie. / (transitive, Canada, US, Scotland) To cause to be grateful or indebted; to oblige.

(biology) Requiring a (specified) way of life, habitat, etc.. / (biology) Absolutely indispensable; essential.

Happy and ready to do favours for others.

present participle of oblige

The imposition of an obligation.

Under an obligation to do something. / Grateful or indebted because of a favor done.

simple past tense and past participle of oblige

(transitive) To constrain someone by force or by social, moral or legal means. / (transitive, intransitive) To do (someone) a service or favour (hence, originally, creating an obligation).