Enter a clue or pattern or both:
The Clue
Pressure meas. (3 letter answer)
The Answer
PSF
Tags
Notes
The answer PSF is so rare that it appears less than once every 2500 puzzles.
Definition
PSF as a noun:
1. (Popular Struggle Front, PSF) = a terrorist group of radical Palestinians who split with al-Fatah in 1967 but now have close relations with al-Fatah; staged terrorist attacks against Israel across the Lebanese border