In an expensive manner.

The state of being expensive; the entailing of great expense.

plural of expensiveness

(business) Eligible to be claimed as a business expense.

plural of operating expense

A bank account which employees may make withdrawals from for work-related purposes. / An arrangement whereby an employee is reimbursed for work-related expenses.

plural of incidental expense

expenditure incurred by an employee on account of a journey on official business

(business, accounting) Any expense incurred in running a business, such as sales and administration, as opposed to production.

A minor expense incurred in the course of an activity.