The phrase "to sign a waiver" means that you are agreeing to give up certain rights or claims in a document. It typically happens when you participate in an activity or use a service, and you accept any risks involved. Full definition
«I even make people sign waiver forms saying they understand the possibilities if they do not buy it and that their regular medical coverage will not work internationally,» she added. (travelmarketreport.com)
Many of us will hardly reflect on the effect of signing a waiver before getting in line to enjoy these activities. (bogoroch.com)