Search Result for "mailbox": 
Wordnet 3.0

NOUN (2)

1. a private box for delivery of mail;
[syn: mailbox, letter box]

2. public box for deposit of mail;
[syn: postbox, mailbox, letter box]

The Collaborative International Dictionary of English v.0.48:

mailbox \mail"box`\ n. 1. A public box for deposit of mail, where it is later picked up by the postal authority for delivery. Syn: postbox, letter box. [WordNet 1.5] 2. A private box to recieve delivery of mail. The term is used both for boxes receiving mail delivered by the public postal authority, or by a private services, such as for mail to employees in large corporations. Syn: letter box. [WordNet 1.5 +PJC] 3. (Computers) A location within a computer storage device where electronic mail is held until it is retrieved by the addressee. Creation and use of an electronic mailbox requires special software as well as a data storage device. [PJC]
WordNet (r) 3.0 (2006):

mailbox n 1: a private box for delivery of mail [syn: mailbox, letter box] 2: public box for deposit of mail [syn: postbox, mailbox, letter box]
The Free On-line Dictionary of Computing (30 December 2018):

mailbox 1. A file belonging to a particular user on a particular computer in which received electronic mail messages are stored ready for the user to read them. A mailbox may be just an electronic mail address to which messages are sent and may not actually correspond to a file if the messages are processed automatically, e.g. a mail server or mailing list. 2. A destination for interprocess messages in a message passing system. A mailbox is a message queue, usually stored in the memory of the processor on which the receiving process is running. Primitives are provided for sending a message to a named mailbox and for reading messages from a mailbox. (1994-10-20)