Letter Box Synonyms

A private box for delivery of mail
Synonyms:
  1. mailbox
  2. postbox
  3. letter drop
  4. mail drop
  5. pillar-box
  6. letterbox
A numbered compartment in a post office where mail is put to be called for
(Noun)
Synonyms:
  1. post-office-box
  2. po-box
  3. pob
  4. call-box