1) Counterbalance 2) Counterpoise 3) Counterweight 4) Oppose 5) To act as a counterweight 6) To counterbalance 
counterpose 1. To set in contrast, opposition, equilibrium, or balance. 2. To offer or place in opposition, response, or contrast. 3. To constitute a counterweight or counterbalance to someone or something.
to offer or place in opposition, response, or contrast.