hatvshuiWhat's the difference?

Quick tell: hat is a noun, hui is an adverb, so they fill different roles in a sentence.

Which to use

“hat” is a noun and “hui” is an adverb - they look or sound alike but fill different roles in a sentence.

#19,453
“hat” frequency rank
#41,055
“hui” frequency rank
60508
confusion score

Side-by-Side Comparison

Feature hat hui
Definition chapéu hoje

Letter map: hat vs hui

Shared letters muted; letters that set hat and hui apart highlighted. Shared run: 1.

3 ch
hat
3 ch
hui

Grammar separator: hat vs hui

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: hat is anoun and huianadverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 60508, derived from the frequency rank of both members and their visual similarity.

hat is recorded at frequency rank #19,453, classified as anoun, pronounced /hæt/, SAMPA: /h{t/. hui is at rank #41,055, tagged as anadv.

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 60508, this pair ranks #7,618 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of hat vs hui

Shared letters: h. Private to "hat": at. Private to "hui": iu.

"hat" · 3 letters · shape CVC  ·  "hui" · 3 letters · shape CVV

Frequently Asked Questions

Do "hat" and "hui" mean the same thing in a sentence?
No - they are not even the same part of speech. "hat" is a noun and "hui" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "hat" or "hui" show up more?
"hat" is the more common of the two: it sits at frequency rank #19,453 in our Portuguese list, against #41,055 for "hui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "hat" and "hui".

  • Full dictionary entry for "hat" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #7,618 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "hat" and "hui" also get mixed up with nearby pairs, the highest-scored neighbour is "hui vs Hut". Nearby pair

Confusion rank #7,618 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list