Below are possible answers for the crossword clue Hard water.
3 letter answer(s) to hard water
ICE
a flavored sugar topping used to coat and decorate cakes
a frozen dessert with fruit flavoring (especially one containing no milk)
a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
a rink with a floor of ice for ice hockey or ice skating; "the crowd applauded when she skated out onto the ice"
an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
cause to become ice or icy; "an iced summer drink"
decorate with frosting; "frost a cake"
diamonds; "look at the ice on that dame!"
kills - N.American slang
put ice on or put on ice; "Ice your sprained limbs"
the frozen part of a body of water
water frozen in the solid state; "Americans like ice in their drinks"
Other crossword clues with similar answers to 'Hard water'