waiver　

waiver　宽免，豁免，放弃　

1.general：expressed or implied voluntary and intentional relinquishment or abandonment of a legal advantage，claim，requirement，or right.Document（instrument）by which an abandonment or relinquishment is effected.2.insurance：agreement or supplementary clause attached to a policy which excludes certain type of losses，limits the amount of claim to a specified sum，or extends the coverage to include items not included in a standard policy.