Definitions
There is 1 meaning of the phrase
Mail Slot.
Mail Slot - as a noun
A slot (usually in a door) through which mail can be delivered
Example Sentences
"She dropped the letter through the mail slot."
"The mail carrier reached into the mail slot to retrieve the package."
"The mail slot in the door was too small to fit the envelope."
"He installed a mail slot in his front door for convenience."
"The keys fell through the mail slot and were lost."