At the age of 80, she's 'riding a/the wave of' renewed interest in her work. [=she's experiencing a time when many people are interested in her work again]
The traffic cop 'waved' cars 'through'. [=waved in a way that told drivers to continue driving through a particular area]
The new school has triggered a 'wave' of optimism [=has made many people feel optimistic] about the public school system.
(..) And it's here on my head. Look at it. Have I got it on? Do the roar, man. Do the roar. Wow. I've never heard that one before. Yeah! Go wild, man! Come on! Break out the wave! Excuse me. You're biting my butt. -No, I'm not. -Yes, you are. -What did you do? (..)2005 Madagascar
(..) Roar! Gather around, people. Big show about to start. Check out the zebra taking care of biz. That's right. Just smile and wave, boys. Smile and wave. Kowalski, progress report. We're feet from the main sewer line. -And the bad news? (..)2005 Madagascar