Term: water softener: a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power
Broader: softener: a substance added to another to make it less hard | Unrelated: slapper: a hitter who slaps (usually another person) with an open hand
Broader: softener: a substance added to another to make it less hard | Unrelated: navigator: in earlier times, a person who explored by ship
Broader: softener: a substance added to another to make it less hard | Unrelated: prototype: a standard or typical example
Broader: softener: a substance added to another to make it less hard | Unrelated: pheromone: a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species
Broader: softener: a substance added to another to make it less hard | Unrelated: semantic relation: a relation between meanings
Broader: softener: a substance added to another to make it less hard | Unrelated: downpour: a heavy rain
Broader: softener: a substance added to another to make it less hard | Unrelated: arabesque: an ornament that interlaces simulated foliage in an intricate design
Broader: softener: a substance added to another to make it less hard | Unrelated: amicability: a disinclination to quarrel
Broader: softener: a substance added to another to make it less hard | Unrelated: concierge: a French caretaker of apartments or a hotel; lives on the premises and oversees people entering and leaving and handles mail and acts as janitor or porter
Broader: softener: a substance added to another to make it less hard | Unrelated: white prairie aster: perennial of western North America having white flowers