Hidden Hinged Openings in Ceilings or Floors
This page is the CodyCross answer for the clue below from Small World, Group 684, Puzzle 3 (Billiard Balls).
Question is: Hidden Hinged Openings in Ceilings or Floors
and the answer is: TRAPDOORS
Word Meaning:
TRAPDOORS — plural of trapdoor
Definitions from Wiktionary.