Enter a clue or pattern or both:
The Clue
Pioneer's piece (9 letter answer)
The Answer
FLINTLOCK
Tags
Notes
The answer FLINTLOCK is so rare that it appears less than once every 2500 puzzles.
Definition
FLINTLOCK as a noun:
1. (flintlock, firelock) = a muzzle loader that had a flintlock type of gunlock
2. an obsolete gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge