Enter a clue or pattern or both:
The Clue
Fuel saver (10 letter answer)
The Answer
INSULATION
Tags
Notes
The answer INSULATION is so rare that it appears less than once every 2500 puzzles.
Related Clues
Attic covering, maybe
Definition
INSULATION as a noun:
1. (insulation, insularity, insularism, detachment) = the state of being isolated or detached; "the insulation of England was preserved by the English Channel"
2. (insulating material, insulant, insulation) = a material that reduces or prevents the transmission of heat or sound or electricity
3. the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity