trapdoor

Noun

 * 1) A hinged or sliding door set into a floor or ceiling.
 * 2)  Such a trap set into the floor of a stage to allow fast exits and entrances.
 * 3)  A secret method of obtaining access to a program or online system; a backdoor.
 * 4)  The special information that permits the inverse of a trapdoor function to be easily computed.
 * 5)  A door in a level for regulating the ventilating current; a weather door.

Translations

 * Bulgarian:, капак на пода
 * Catalan:, escotilla
 * Danish:, luge
 * Dutch: ,
 * Esperanto: klapopordo, klappordo, plankpordo, plankopordo
 * Finnish:
 * French:
 * Galician: zapón, zapa, trapa,
 * German:
 * Greek:
 * Hungarian:
 * Icelandic:, fallhleri,
 * Italian:
 * Maori: kopani
 * Norman: trappe
 * Norwegian:
 * Bokmål:
 * Polish:
 * Portuguese:
 * Russian: ,
 * Spanish: ,
 * Swedish: ,


 * Bulgarian: падаща врата
 * Catalan:
 * Danish:
 * Dutch:
 * Finnish:
 * Italian:
 * Polish:
 * Russian:
 * Swedish:


 * Catalan: porta del darrere
 * Dutch:
 * Finnish: takaportti
 * Russian:


 * German:
 * Italian:

Verb

 * 1)  To subvert (a cryptographic scheme) by means of a secret parameter that makes the trapdoor function easy to compute.
 * 2)  To form a trapdoor deformity.