the use; value; benefit of something; good; when negated, useless.
Iyan kapunyahan-na?
What is its value/use?
Niyah kapunyahan-na panulat.
Its use [is for] writing.
It is good for writing.
There is no use for you to go to school if you are just never present in school.
It is useless for you to go to school if you are always absent.