What is another word for third class mail?
Pronunciation: [θˈɜːd klˈas mˈe͡ɪl] (IPA) 
Third class mail refers to a category of mail that is generally considered to be less important or urgent than first or second class mail. Synonyms for third class mail include bulk mail, advertising mail, and standard mail. Bulk mail refers to a large quantity of identical mailings sent at a discounted rate. Advertising mail is a type of mail that is sent to promote products or services. Finally, standard mail is a classification used by the United States Postal Service for non-urgent mail items such as flyers, circulars, and newsletters. Regardless of the terminology used, third class mail is an efficient and cost-effective method for businesses to communicate with their customers.
