even out, stabilize, weigh, complement, proportion, match, nix, retract, nullify, void, invalidate, annul, withdraw, correct, offset, compensate, add, reverse, negate, wipe out/clean, cancel (out), counter, level (the playing field), equate, equal, balance (out), counterbalance, tip the balance, maintain (value), make up for, detract, temper with, outweigh, exact, neutralize, counterweigh, go against, counteract, remedy, make good, even out/up, counterpoise, countervail