›(UK also mailout, UK alsomailshot)the act of sending letters, packages, or electronic messages to a lot of people at one time: If you received a mailing of a 38-page brochure, it's because you signed up at one of our stores.A second mailing had a big impact on increasing return rates.
›US(UKmailshot)a paper advertisement sent to homes or businesses: I've got 1,500 mailings that have to get out before the evening post. → See alsodirect mailing, mailer, mass mailing