What is mail slot? How to use in English

Definition & pronunciation of mail slot

mail slotnoun
khe thư
/ˈmeɪl slɒt//ˈmeɪl slɑːt/

Where does the word mail slot come from?

The term "mail slot" refers to a narrow vertical opening, typically found on the exterior of a building or a mailbox, designed for receiving mail. The origin of this word can be traced back to the 19th century when the term "letter slot" was used in the United States. This term was used to describe the narrow slots that were installed in the walls of buildings, allowing the delivery of letters directly into the building without the need for a door or a window to be opened. As the popularity of sending mail through the postal service increased, so did the demand for a standardized way to deliver letters. In 1868, the United States Post Office Department instituted a new regulation that required all new and existing buildings to have a letter slot installed, which led to the standardization and spread of this feature. Over time, the term "letter slot" evolved into "mail slot", as it became common for people to use the slot for more than just letters. Today, the term is recognized worldwide and is a common feature in buildings, mailboxes, and other structures designed for the convenience of delivering and receiving mail. In summary, the word "mail slot" has its roots in the history of mail delivery and the need for standardization and convenience to support the growth of the postal service.

Example of vocabulary mail slotnamespace

The mail slot on our front door is surprisingly spacious, allowing us to easily fit thick envelopes and small packages without having to wait for the postman.
In order to prevent stragglers from stuffing unwanted advertisements into our mail slot at night, we've installed a lockable cover that keeps our mailbox secure.
Whenever we're out of the house for an extended period of time, we inform the post office of a temporary mail redirection, ensuring that our letters and packages won't pile up in the mail slot and scatter all over the floor.
After a intense snowstorm that left a foot of snow outside, we flung open the mail slot to find a nest of chirping sparrows snuggled up amongst the letters and magazines.
If you're expecting a package from Amazon, don't worry about missing it as we've fitted a little notice board beside the mail slot, where the delivery driver can pop our name and address on there when they make their rounds.