Enter a clue or pattern or both:
The Clue
Buffer areas, briefly (4 letter answer)
The Answer
DMZS
Tags
Notes
The answer DMZS is so rare that it appears less than once every 2500 puzzles.
Definition
DMZ as a noun:
1. (demilitarized zone, DMZ) = a zone from which military forces or operations or installations are prohibited; "tensions exist on both sides of the demilitarized zone separating North Korea and South Korea"