Enter a clue or pattern or both:
The Clue
Britain's crown jewels have them (7 letter answer)
The Answer
LUSTRES
Tags
Notes
The answer LUSTRES is so rare that it appears less than once every 2500 puzzles.
Definition
LUSTRE as a noun:
1. (luster, lustre) = a surface coating for ceramics or porcelain
2. (luster, lustre, brilliancy, splendor, splendour) = a quality that outshines the usual
3. (shininess, sheen, luster, lustre) = the visual property of something that shines with reflected light