wave at

wave at (someone or something)

1. To wave one's hand from side to side in the direction of or while looking at someone or something. A: "Who's that guy waving at you?" B: "I don't know. I've never seen him before." I waved at the bus, but it didn't stop for me.
2. To move or swing something up and down, back and forth in the direction of someone or something. In this usage, a noun or pronoun is used between "wave" and "at." Please don't wave that stick at other people like that—you might hurt someone! We waved our flags and banners at the helicopters passing overhead.
See also: wave
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

wave at someone

 and wave to someone
to move an upraised hand in such a way as to signal recognition to someone. The people in the boat waved at us. They waved to us after we waved at them.
See also: wave
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
References in periodicals archive ?
The Duchess of Sussex's wave at the royal wedding looked more graceful compared to the first time she waved to fans after her engagement.
AAF is defined as the ratio of the maximum amplitude at the extreme position to the amplitude of the monochromatic wave at the far distance before it [33, 34, 40].
At the front surface of the waveguide, where the mode conversion takes place, the shear wave is converted to the longitudinal wave at not optimal angle anymore and therefore it even misses the ultrasonic transducer.
Basic geometry puts the wave at more than 34 m tall, the highest ever observed.
if it is wrong to treat the ejected electron as a plane wave for energies less than 4 [E.sub.B], then it is inconsistent to treat the scattered wave as a plane wave at these energies since electrons are indistinguishable.
A smaller bright wave at right is induced by the moon Pandora.