whatvswhat'sWhat's the difference?

Quick tell: what is a adverb, what's is a contraction, so they fill different roles in a sentence.

Which to use

“what” is an adverb and “what's” is a contraction - they look or sound alike but fill different roles in a sentence.

#4,525
“what” frequency rank
#16,910
“what's” frequency rank
21435
confusion score

Side-by-Side Comparison

Feature what what's
Definition em alguma maneira ou grau; em parte; geralmente seguido de with what is (o que é, está)

Where the spellings diverge

Shared letters are muted; the letters that actually set what and what's apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

4 ch
what
6 ch
what's

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: what is /wɔt/ while what's is /wɑts/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “what” sits inside “what's”, and the parts of speech differ too (adverb vs contraction), which is usually the fastest check. Our composite confusion score for this pair is 21435, derived from the frequency rank of both members and their visual similarity.

what is recorded at frequency rank #4,525, classified as anadv, pronounced /wɔt/. what's is at rank #16,910, tagged as acontraction, pronounced /wɑts/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 21435, this pair ranks #48,825 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of what vs what's

Shared letters: ahtw. Private to "what": -. Private to "what's": s.

"what" · 4 letters · shape CCVC  ·  "what's" · 5 letters · shape CCVCC

Known mistypes of this pair

  • whathwat · waht · whatt · whhat · whta · wwhat

Frequency comparison

what#4,525
what's#16,910

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "what" and "what's" be used interchangeably?
No - they are not even the same part of speech. "what" is an adverb and "what's" a contraction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "what" or "what's"?
"what" is the more common of the two: it sits at frequency rank #4,525 in our Portuguese list, against #16,910 for "what's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering what vs what's

The fastest way to pick the right one every time.

  • Check the role first: if you need an adverb, it's “what”; for a contraction, it's “what's”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “what” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list