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what's up

what's up

554 7.2
A friendly question asking how someone is or what they are doing
  • idiom
  • /wɑts ʌp/
  • Informal
translation icon : qué tal
  • What's up, Ahmed?
  • hey, what's up
  • hi, what's up
  • yo, what's up

Examples

  • What's up, paisan?

  • Hey, folks, what's up?

  • All right, what is up, everybody?

  • When he heard this, he became worried sick, "Ah, I wonder what's up?"

    Fiction book (1998)
  • I asked one of the students I was standing in line with, "What's up with that?"

    Blog text (9)
  • - Hey, what's up, Molly?

  • One of his colleagues sidled up to him and said, "What's up, Crazy Eddie?"

    Fiction book (1998)
  • What's up, man?

  • Val and Earl freeze in their tracks and glance at each other, realizing instantly what's up.

    Fiction book (1990)
  • Hey, what's up?

Synonyms

what's good
vswhat's up
  • Informal
38 9.1

A casual greeting asking how someone is or what's new

is a general informal inquiry about events or someone's well being
sup
vswhat's up
  • Slang
27 9.9

A short informal greeting used to ask how someone is

is a fuller informal inquiry about events or personal well being
wassup
vswhat's up
  • Slang
3 9.9

A casual way to ask someone how they are or what they are doing

is the general informal question about events or personal condition
suh
vswhat's up
  • Slang
2 9.9

A casual way to say hello to someone

is the neutral informal question about events or someone's well being
how goes it
vswhat's up
  • Archaic
2 8.5

To ask someone how they are when you meet them

is the very casual direct question used to ask about events or someone's state
happenin'
vswhat's up
  • Slang
9.9

A casual greeting that asks what is going on

is broader, asking about both events and personal well being
what's up Doc
vswhat's up
  • Informal
9.6

A friendly joking greeting that asks how someone is, copying Bugs Bunny

is the ordinary informal question without humorous or character reference

Antonyms

4 7.4

A phrase people say to tell others nothing interesting or worrying is happening

How Casual

happenin'
  • Slang
9.9
what's good
  • Informal
38 9.1
what's up
  • Informal
554 7.2
how do you do
  • Formal
86 6.1

Surface Forms

what's up main

Morphology

what's + up

Although 'what's up' is logically built from 'what' (a question word) + 'up' (indicating a state or direction), its use as an informal greeting meaning 'what is happening/how are you' is a pragmatic idiom rather than a strictly compositional phrase. A B1 learner who knows the constituents might guess it is a casual question but would not reliably derive the conventional greeting sense without exposure to its conversational use, so the transparency is partial.

Etymology

What's up comes from a short form of what is up, an old way to ask 'what is happening' or 'how are you'. Think of up as asking what is 'going on' with someone, so today the phrase is a casual way to check on someone's news or feelings.