balance out

abort annul repeal rescind revoke rule out

abrogate counteract counterbalance countercheck countermand counterpoise discard discharge frustrate ignore invalidate negate neutralize nullify offset overthrow recall recant redeem redress refute repudiate retract suppress vacate void

call off compensate for declare invalid make up for put an end to render inert render null and void set aside

approve keep validate

aid allow assist emphasize encourage help permit ratify sanction support

arrange establish imbalance tip uphold