letterbox

[ let-er-boks ]
See synonyms for letterbox on Thesaurus.com
noun
  1. Also letter box .Chiefly British. a public or private mailbox.

  2. Digital Technology, Television. a technique for displaying a wide-screen film or landscape video on a narrower screen by reducing its size but retaining the aspect ratio, with black bands filling the screen above and below the picture (often used attributively):letterbox videos.: Compare pan and scan, pillarbox (def. 1).

verb (used with object)
  1. Digital Technology, Television. to display (a film or video) by using the letterbox technique.

Origin of letterbox

1
First recorded in 1765–75; letter1 + box1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use letterbox in a sentence

British Dictionary definitions for letter box

letter box

nounmainly British
    • a slot, usually covered with a hinged flap, through which letters, etc, are delivered to a building

    • a private box into which letters, etc, are delivered

  1. Also called: postbox a public box into which letters, etc, are put for collection and delivery

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012