Related Clues:

• Surfer's swell
• -
• Acknowledge one's fans
• On top it can have a whitecap
• Respectful greeting
• Wave, for one
• Another rough seas feature
• Hello from a distance
• Gesture to a general
• Greeting
• Pay homage to
• Bid farewell, in a way
• Undulation
• Military greeting
• General acknowledgment?