Как перевести obligation на русский язык

Часть речиЗначениеАнглийские синонимы
nthe social force that binds you to the courses of action demanded by that force
dutyobligation; responsibility
na legal agreement specifying a payment or action and the penalty for failure to comply
na written promise to repay a debt
na personal relation in which one is indebted for a service or favor
nthe state of being obligated to do or pay something