Great Duty, Important Role
A big duty is a great duty. It can also be an important task. Think about some kind of big duty you have. Then, think about what an important task it is too. Feel proud of your important task.
This is a jukugo word, which usually means on'yomi readings from the kanji. Since 大 has two on'yomi readings, here's a mnemonic to help you remember which one to use:
You've been assigned the important task of taking care of the local tie yaks (たいやく). Where you're from, tie-wearing yaks are incredibly important, so don't take this great duty lightly!
to accomplish an important task
to be given an important task
to carry out an important task
Being a teacher at this school is a great duty.
Thanks to getting a big role in the drama series, I became popular nationwide.
Being a leader at the Middle East bureau is an important role!