what's up?

phrase

US, informal
—used as a friendly greeting
Hi, Jim. What's up?

Browse Nearby Words

what's this about
what's up?
what's up with
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Cite this Entry

“What's up?.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/what%27s%20up%3F. Accessed 6 Mar. 2026.

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