› [U] ACCOUNTING, COMMERCE the process of sending someone a document asking them to pay for goods or services that they have received: Vivian quit her job in the billing department. an electronic billing system → See also itemized billing, reverse billing billings [plural] › ACCOUNTING the value of sales by a company during a particular period: The company, with annual billings of about $700 million, also has offices in Europe. Please list your overall projected monthly billings. › [C or U] the way in which something is advertised or described: billing as sth She has secured a billing as the "top businesswoman of the year".