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.
(..) Ho, ho, ho! Okay. On the count of three, I'll shoot the fire extinguisher and get him airborne. Howard, you wave the blanket and guide him towards the exit. Raj, you hold open the curtain so he can fly out. Are you sure a dummy like me can handle something (..)2014 TvShow: The Big Bang Theory Title: The Clean Room Infiltration Season: 8 Episode 11