Crossword Helper
Enter a clue or pattern or both:
The Clue
Krypton, e.g. (8 letter answer)
The Answer
INERTGAS
Tags
eg
helium
inertga
krypton
neon
noble
thing
Notes
The answer INERTGAS is so rare that it appears less than once every 2900 puzzles.
Related Clues
Neon or helium
Noble thing