1. To refrain from insisting on or using a right or a claim: "Ed will waive all rights to the money he has inherited so his daughter can have enough funding for her university expenses."
2. To abstain from applying or enforcing a rule, a restriction, or a fee: "The college will waive Mary's tuition expenses because she has a scholarship that will pay for the necessary costs."

"The schools waive the costs for books for low-income students."

1. An area of moving water that is raised above the main surface of an ocean, a lake, etc.: "There was a huge wave that almost upset the boat."
2. A strong feeling that suddenly affects someone: "An unexpected wave of fatigue overcame Robin after working two days without sleep."

To make a repeated movement of the hand or of something held in the hand; especially, as a signal or greeting: "Frank saw Jill wave her hand hello after the train came to a stop in the station."