What does the acronym "PMI" stand for in postal terms?

The acronym "PMI" in postal terms stands for "Priority Mail International." This designation refers specifically to a postal service offered by the United States Postal Service (USPS) that provides an expedited shipping option for sending items to various countries around the world. Priority Mail International is known for its reliable and fast delivery, as well as its tracking capabilities and insurance options, making it a popular choice for businesses and individuals looking to send packages internationally.

Understanding PMI is crucial for anyone involved in shipping or logistics within the postal framework, particularly those who handle international mail. Each of the other options presented relates to concepts associated with mailing and packages but does not specifically define the term "PMI" within the context of postal services.