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English definition of “mailbox”

mailbox

noun [C] (also mail box)     /ˈmeɪlbɒks/
COMMUNICATIONS a box in an office or outside a person's home where letters are delivered : Your mailbox is with all the others near the receptionist's desk .
US →  postbox
IT, COMMUNICATIONS the part of a computer program that shows on a computer screen where electronic messages are stored : Look out for our emails in your electronic mailbox. Check your mailbox tomorrow for the trip details . → See also inbox
(Definition of mailbox noun from the Cambridge Business English Dictionary © Cambridge University Press)
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