I need to keep track of my monthly expenses.

He achieved success at the expense of his health.

This dress is very expensive.

She bought an expensively designed dress for the party.

I need to submit my expense account by the end of the month.

I need to budget my living expenses carefully.

The company reimburses employees for their business expenses.

I had to pay for the repairs myself, so the out-of-pocket expenses were quite high.