1. Commerce: a reduction in the amount of a bill due to factors such as demurrage, overtime penalty, or rent. 2. Environment: to reduce or eliminate polluting or hazardous substances. This is done by removing them or considering a new plan of more efficient waste management. 3. Legal: A court decision that is suspended, or simply closing the case before the final decision is reached. 4. Taxation: A rebate given under special circumstances such as in aftermath of natural disasters.