letter box
1.
(
noun
) a private box for delivery of mail
Synonyms:
mailbox
Related Words:
box
2.
(
noun
) public box for deposit of mail
Synonyms:
mailbox
,
postbox
Related Words:
maildrop
,
pillar box
3.
(
noun
) a numbered compartment in a post office where mail is put to be called for
Synonyms:
POB
,
call box
,
post-office box
Related Words:
compartment
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