What is the meaning of counterbalance?

noun

• A weight that balances another weight.
  • synonyms: counterweight, counterpoise, balance, equalizer, equaliser
• Equality of distribution.
  • synonyms: balance, equilibrium, equipoise
• A compensating equivalent.
  • synonyms: offset

verb

• Adjust for.
  • usage: "engineers will work to correct the effects or air resistance"
  • synonyms: compensate, correct, make up, even out, even off, even up
• Contrast with equal weight or force.
  • synonyms: oppose
• Oppose and mitigate the effects of by contrary actions.
  • usage: "This will counteract the foolish actions of my colleagues"
  • synonyms: counteract, countervail, neutralize