counterbalance
noun/ˈkaʊntəbæləns/
/ˈkaʊntərbæləns/
(also counterweight)
[usually singular]- counterbalance (to something) a thing that has an equal but opposite effect to something else and can be used to limit the bad effects of something
- The accused's right to silence was a vital counterbalance to the powers of the police.
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counterbalance