Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun equaliser
2 senses of equaliser                                                   
Sense 1
equalizer, equaliser -- (electronic equipment that reduces frequency distortion)
       => electronic equipment -- (equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor))
Sense 2
counterweight, counterbalance, counterpoise, balance, equalizer, equaliser -- (a weight that balances another weight)
       => weight -- (an artifact that is heavy)

