what's up

phrase

"what-s-up" is a 7-letter English headword indexed on PlainSpell.

The verdict

“what's up” is uncommon English (outside the top frequency list), classed as a phrase. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - What’s the matter? What is the problem? What is wrong?

Corpus desk

Index EN-what-s-up · what's up · English

what's up · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "W" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for what's up
PropertyValue
Headwordwhat's up
LanguageEnglish
Part of speechPhrase
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “what's up” in English

what's upranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

what's up is uncommon English outside the top frequency list, classed as aphrase. Rarity is why readers land here mid-draft. 3 senses are on record.

No misspelling variants are generated for what's up in our index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: Popularized by the cartoon character Bugs Bunny as part of his catchphrase “Eh... What’s up, doc?”, as early as 1940. Originally a common greeting from Bugs Bunny creator Tex Avery's neighborhood in Taylor, Texas. The correct English form is what's up, spelled W-H-A-T-'-S- -U-P.

Definition

  1. 1
    What’s the matter? What is the problem? What is wrong?
  2. 2
    What's happening? What are you doing?
  3. 3
    A casual greeting with a meaning similar to hi or nice to meet you.

Recorded use

Wiktionary examples

These source excerpts show how what's up appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. You're looking a bit miserable. What's up?
  2. I got a call saying to come straight away. What's up?

Etymology

Popularized by the cartoon character Bugs Bunny as part of his catchphrase “Eh... What’s up, doc?”, as early as 1940. Originally a common greeting from Bugs Bunny creator Tex Avery's neighborhood in Taylor, Texas.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "what's up"?
"what's up" is spelled W-H-A-T-'-S- -U-P.
What does "what's up" mean?
As a phrase, "what's up" means: What’s the matter? What is the problem? What is wrong?
What is the origin of the word "what's up"?
Popularized by the cartoon character Bugs Bunny as part of his catchphrase “Eh... What’s up, doc?”, as early as 1940. Originally a common greeting from Bugs Bunny creator Tex Avery's neighborhood in Taylor, Texas. See the full etymology section above for more details.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list