The 'responsibility' group
These nouns refer to a responsibility, task, or role that someone or something has.
affair affairs business caseload concern department duty fault function job metier mission part purpose remit responsibilities responsibility role rounds task treat use work workload
If I've had an uncustomary sort of marriage, that's my business, not yours.
We were only doing our duty.
The part of speech of a word depends on its function in a sentence.
It is your responsibility to ensure that you obtain all vaccinations and inoculations appropriate for the holiday.
My task was to advise companies how best to put their points of view across.