trapdoor

English

Wikipedia

Alternative forms

• trap door
• trap-door

Etymology

trap + door

Noun

trapdoor (plural trapdoors)

1. A hinged or sliding door set into a floor or ceiling.
2. (theater) Such a trap set into the floor of a stage to allow fast exits and entrances.
3. (computing) A secret method of obtaining access to a program or online system; a backdoor.
4. (mathematics, cryptography) The special information that permits the inverse of a trapdoor function to be easily computed.

Synonyms

• drop

Derived terms

• trapdoor spider

Translations

door set into floor or ceiling

• Danish: lem (da) c, luge (da) c
• Dutch: valluik (nl) n, valdeur (nl) f
• Finnish: luukku (fi)
• French: trappe (fr)
• German: Falltür (de) f
• Greek: καταπακτή (el) (katapaktí) f, (obsolete) καθέκτης (el) (kathéktis) m
• Icelandic: hleri (is) m, fallhleri (is) m, hlemmur (is) m

• Italian: botola (it)
• Jèrriais: trappe f
• Maori: kopani (mi)
• Polish: klapa (pl) f
• Portuguese: alçapão (pt)
• Russian: люк (ru) (ljuk) m, лаз (ru) (laz) m
• Spanish: trampa (es)
• Swedish: fallucka (sv) c, lucka (sv) c

similar door on a stage

• Danish: faldlem (da) c
• Dutch: valluik (nl)
• Finnish: luukku (fi)

• Polish: zapadnia (pl) f
• Swedish: fallucka (sv) c

secret access to a program

• Dutch: achterdeur (nl)
• Finnish: takaportti (fi)

• Russian: лазейка (ru) (lazéjka) f

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Translations to be checked

• German: Falltür (de) f
• Italian: botola (it) f