mail slot noun

mail slot noun what is mail slot Satin Stainless, , Mail Slot Sleeve what is slot car racing An alternative form of mail reception allowed by the USPS is a door slot Learn more about this mailbox option here!

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what is the 5 slot machine strategy_ mail slot in British English​​ noun US a slot, usually covered with a hinged flap, through which letters, etc are delivered to a building  mail slot in British English​​ noun US a slot, usually covered with a hinged flap, through which letters, etc are delivered to a building