1. letterbox - Noun
2. letterbox - Adjective
3. letterbox - Verb
(chiefly UK) A box into which mail is put.
Synonym: (chiefly US) mailbox
A collection point for mail intended for onward delivery, a secure box or receptacle for this purpose.
Synonyms: post box, (UK) pillar box
A delivery point for mail, a box, compartment or slot for this purpose.
Synonym: (US) mail slot
A wad of junk mail was pushed through the letterbox in the front door and dropped onto the mat.
A hidden container that holds a logbook and rubber stamp, found by following clues as a form of recreation.
(mountaineering) A rectangular hole or slot.
letterbox (not comparable)
(film) Transferred to home video formats while preserving the original aspect ratio, having black bars above and below the picture area.
(film) To transfer a widescreen motion picture to home video formats while preserving the original aspect ratio, with the placing of black bars above and below the picture area.
To hunt for letterboxes (containers with logbook and rubber stamp) by following clues.
Source: en.wiktionary.orgI honestly have no strategy whatsoever. I'm waiting for that script to pop through the letterbox and completely surprise me. Ben Kingsley
We were taping the episodes of the show. I guess they had decided they could now fit my face onto a TV screen, and they wouldn't have to letterbox it. Margaret Cho
She is becoming afraid to go out. Windows are broken. She finds excreta pushed through her letterbox. When she goes to the shops, she is followed by children, charming, wide-grinning piccaninnies. They cannot speak English, but one word they know. 'Racialist,' they chant. Enoch Powell
The one good thing is that I get a lot more good scripts coming through my letterbox. 'Vera Drake' raised my profile in one way, and then 'Harry Potter' in another. Imelda Staunton
You think you can get away, but you can't. I'll follow you home and I'll shout jokes through your letterbox. Ken Dodd
In the event of being placed in a letterbox that has multiple hitchhikers in it (such as a hitchhiker hostel), the parasite "infects" all of the hitchhikers inside. Source: Internet