Enter a clue or pattern or both:
The Clue
They appear at one-yard intervals (9 letter answer)
The Answer
HASHMARKS
Tags
Notes
The answer HASHMARKS is so rare that it appears less than once every 2500 puzzles.
Related Clues
Service stripes
*Corned beef stains?
Lines on a football field
Definition
HASHMARK as a noun:
1. (service stripe, hashmark, hash mark) = an insignia worn to indicate years of service