It is our obligation to follow the rules and regulations.

The contract will obligate you to fulfill certain responsibilities.

I am obliged to help my friend move to a new apartment.

She is a kind obliger who always helps others.

She is always obliging and willing to help others.

I am obliged to help my neighbor with their groceries.

Noblesse oblige dictates that those in positions of privilege have a moral obligation to help those less fortunate.