Waive / Wave
Different meaningsWaive means give up or refrain from enforcing; wave refers to a movement, signal or surge.
Waive
Use when
You mean voluntarily give up a right or choose not to enforce a requirement.
Example
“The approving officer may waive the fee in exceptional cases.”
Wave
Use when
You mean move to and fro, signal with a hand, or describe a surge or sequence.
Example
“The second wave of the rollout begins in September.”
Quick check
wave the fee, waive goodbye, fee waver
Usage note