The most common and most likely answer to this crossword clue is the 6 letter word PETARD which also is the latest solution we found used in New York Times in 2023.
Old explosive device used to breach castle walls crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| PETARD | 100 % | 6 | 
Why may PETARD be the right solution?
A "petard" is a small bomb used to blow up gates and walls when breaching a castle. The phrase "hoist with his own petard" means to be harmed by one's own plan to harm someone else.
Words with a meaning similar to the clue: Old explosive device used to breach castle walls
These words may or may not be a possible solution to this crosswords clue.- petard
 - mine
 - bomb
 - donjon
 - brick
 - charge
 - torpedo
 - torpedoing
 - bombe
 - bombing
 - booby trap
 - wall rocket
 
Crossword Answer definitions
PETARD noun- A small, hat-shaped explosive device, used to breach a door or wall.
 - Anything potentially explosive, in a non-literal sense.
 - A loud firecracker.
 
- To attack or blow a hole in (something) with a petard.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution