The term "RFD" stands for "Rural Free Delivery." It is a noun that refers to a service provided by postal systems to deliver mail to people living in rural (countryside) areas without charging them extra fees. This service is especially important for people who live far away from post offices.
You would use "RFD" when discussing postal services, especially in contexts related to rural areas and mail delivery. It is often used in discussions about how mail is delivered differently in cities compared to rural areas.
In more advanced discussions, you might talk about the historical context of RFD, such as how it started in the early 20th century to improve communication in rural areas. You can also discuss its impact on rural communities and how it has changed over time with the advent of technology.
While "RFD" specifically refers to the postal service, it may not have many other meanings. However, "RFD" can sometimes be used informally to refer to any kind of free delivery service in various contexts.
There are no specific idioms or phrasal verbs directly related to "RFD," but you might encounter phrases like "mail it out" or "send it off" when discussing how to send letters and packages.
"RFD" is a crucial part of how people in rural areas receive their mail without extra charges.