Obligation
Duty
noun, の adjective
My righteousness task is my obligation to these people. I will go out and purge the world of evil, be righteous, and make things happen. It's my duty!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
家事をするのは、妻の義務だと言う人がいますが、本当にそうなんでしょうか？
Some people say that doing housework is a wife's obligation, but is that really the case?
審判は、公平な判断を下す義務があります。
The umpire has a duty to make fair calls.
それって、守秘義務の違反になるんじゃないですか？
But then, wouldn't that be a breach of confidentiality?