mail slot

1. 1.

   a slot (usually in a door) through which mail can be delivered

   Broaderslot

Questions about mail slot

What does mail slot mean?

mail slot means "a slot (usually in a door) through which mail can be delivered".

Is mail slot a common word?

mail slot is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.