[let-er-boks] /ˈlɛt ərˌbɒks/
Also, letter box. Chiefly British. a public or private mailbox.
a technique for displaying a wide-screen film on a regular-format television screen by reducing its size but retaining the aspect ratio, with black bands filling the screen above and below the picture.
To show a wide-screen movie on the television screen by reducing its size and putting black bars above and below: Today we’ll see a wide-format, letterboxed edition, which is rarely telecast/ ”letterboxing,” which retains theatrical images on a rectangular shape (1990s+ Television)
/ˈlɛtəˌbɒksɪŋ/ noun 1. a method of formatting film that enables all of a wide-screen film to be transmitted on a television screen, resulting in a blank strip of screen above and below the picture 2. a type of treasure hunt in which a box, known as a letterbox, is hidden in a remote rural location […]
[let-er-kahrd] /ˈlɛt ərˌkɑrd/ noun, British. 1. a large postal card, with gummed edges, that can be folded lengthwise and sealed with the message inside.
noun 1. .
noun 1. (in a door or partition) a slot through which letters can be pushed.