Expense

n. 1 cost incurred; payment of money. 2 (usu. ‘apt) a costs incurred in doing a job etc. b amount paid to reimburse this. 3 thing on which money is spent. o at the expense of so as to cause loss or harm to; costing. [Latin expense: related to EXPEND] expense account n. list of an employee’s expenses payable by the employer.