What is another word for third-class mail?
Pronunciation: [θˈɜːdklˈas mˈe͡ɪl] (IPA) 
Third-class mail refers to mail that is not considered as priority or expedited mail. It is also commonly referred to as bulk mail or standard mail. This type of mail is typically used for mass mailings and promotional materials, and is usually the cheapest option for sending large quantities of mail. Other terms that can be used in place of third-class mail include direct mail, advertising mail, and non-profit mail. While this type of mail may not be as fast or urgent as other mail options, it can still be an effective way to reach a large audience at a lower cost.
