Enter a clue or pattern or both:
The Clue
Castle's non-welcome mat (4 letter answer)
The Answer
MOAT
Tags
Notes
The answer MOAT is seen frequently, appearing about once every 160 puzzles.
Related Clues
Fosse
Alternative to a fence
Anagram for atom
Attack deterrent
Castle defense
Castle encircler
Castle feature
Castle guard
Castle guardian
Castle isolator
Castle protection
Castle protector
Castle trench
Castle's defense
Defense mechanism
Ditch of old
Fortress feature
Fortress protection
Keep guard
Liquid defense
Medieval protection
Protective ditch
Protective trench
Torquilstone defense
Water ring
Zoo barrier
Zoo trench
Advanced sandcastle feature
Castle-visitor's hurdle
A drawbridge spans it
Hazard for a castle invader
Item under a drawbridge
Protective zoo feature
Ring around the castle
Tower of London feature
Water-filled trench
Water under the bridge
Definition
MOAT as a noun:
1. (moat, fosse) = ditch dug as a fortification and usually filled with water