A thin crisp cracker: "Rita drank sherry and ate a wafer before dinner was served."

The act of choosing not to use or to require something that is normally allowed or which is usually required: "The lawyer for the defendant asked the judge if he would allow a waiver of a jury trial."

"The teacher indicated that she would have a waiver of any final exam for that particular class."

1. To go back and forth between choices or opinions, to be uncertain about what you think about something or someone: "The organization members all declared that they will never waver in their support for their president."

"Erik didn't waver in his decision to retire from teaching school."

2. To become unsteady because of weakness, emotion, tiredness, etc.: "During long sermons at church, Jack's attention would sometimes waver because he was thinking about other things."

"Kim's voice seemed to waver while she was telling her friends about the accident."