or trap door

[ trap-dawr, -dohr ]
See synonyms for trapdoor on
  1. a door flush with the surface of a floor, ceiling, or roof.

  2. the opening that it covers.

  1. of, relating to, or like a trapdoor.

Origin of trapdoor

First recorded in 1325–75, trapdoor is from Middle English trappe dore. See trap1, door Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use trapdoor in a sentence

  • A secret trap door in the kiosk below the clock leads to a spiral staircase down to the lower level info booth.

  • From a secret trap door to a Nazi target, the hundred things you never knew about our favorite train station.

  • A trap-door had opened in the floor of his consciousness; his first, early love sheltered in his aching heart again.

    The Wave | Algernon Blackwood
  • A drunken man would reel from one side to the other until he fell down a cellar trap-door, into the gutter, or into the sea.

    Skipper Worse | Alexander Lange Kielland
  • One of the most interesting of the spider race is the “trap-door” spider which inhabits warm countries all over the earth.

  • A dark room; no light except from a trap door; a very proper place for improper doings.

    Overland | John William De Forest
  • Dalgard flung himself through the trap door, luckily landing on one of the steep, curved ramps.

    Star Born | Andre Norton

British Dictionary definitions for trap door

trap door

  1. a door or flap flush with and covering an opening, esp in a ceiling

  2. the opening so covered

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012