obligation
//ˌɒblɪˈɡeɪʃən//
Noun
obligationSingular
obligationsPlural
1
A duty or commitment that one is required or expected to fulfill, either legally or morally.
Parents have an obligation to care for their children.
2
The state of being bound to do something or behave in a certain way by law, agreement, or moral principle.
The company has a legal obligation to protect customer data.
3
A debt of gratitude for a service or favor received.
I feel a deep obligation to her for helping me through difficult times.