Enter a clue or pattern or both:
The Clue
Boundaries (10 letter answer)
The Answer
PERIMETERS
Tags
Notes
The answer PERIMETERS is so rare that it appears less than once every 2500 puzzles.
Definition
PERIMETER as a noun:
1. (margin, border, perimeter) = the boundary line or the area immediately inside the boundary
2. a line enclosing a plane areas
3. (circumference, perimeter) = the size of something as given by the distance around it