Word.ws English Dictionary

trap door

trap door is the alternative form of trapdoor.

Meaning of trapdoor

Noun

trapdoor (plural trapdoors)

  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.

See all 7 meanings of trapdoor

Forms of trap door

pluraltrap doors

Questions about trap door

What is trap door the alternative form of?
Trap door is the alternative form of trapdoor.

Words near trap door in the dictionary

  1. trap car
  2. trap cars
  3. trap crop
  4. trap cropping
  5. trap crops
  6. trap door
  7. trap doors
  8. trap house
  9. trap houses
  10. trap in
  11. trap jaw ant

Source and license

Adapted from Wiktionary: trap door (page history and authors); trapdoor (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “trap door.” Word.ws, https://word.ws/trap_door. Based on Wiktionary, CC BY-SA 4.0.