The children matter more to her than anything else in the world．

I know which area they live in, but whether I can find their house is a different matter．

Planning a project is just a matter of working out the right order．

Is anything the matter?

It is a matter for the police．

Her low mood resulted from the upset at home．

She was upset that he left without saying good-bye．

There is no point getting upset about it．

It upset me to think of her all alone in that big house．

This decision is likely to upset a lot of people．