ui vs UTI, What's the Difference?

Which to use

“ui” is an intj and “UTI” is an abbrev - they look or sound alike but fill different roles in a sentence.

#19,875
“ui” frequency rank: #14,489
“UTI” frequency rank: 34364
confusion score

Side-by-Side Comparison

Feature	ui	UTI
Definition	exprime surpresa, admiração, repugnância	Unidade de Terapia Intensiva

Where the eye mixes ui and UTI

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch

3 ch

UTI

Look-alike desk: ui vs UTI

These two trip readers on the page rather than in the ear: ui is /ˈuj/ while UTI is /u.te.ˈi/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (intj vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 34364, derived from the frequency rank of both members and their visual similarity.

ui is recorded at frequency rank #19,875, classified as anintj, pronounced /ˈuj/. UTI is at rank #14,489, tagged as anabbrev, pronounced /u.te.ˈi/.

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 34364, this pair ranks #32,928 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ui vs UTI

Shared letters: iu. Private to "ui": -. Private to "UTI": t.

"ui" · 2 letters · shape VV · "UTI" · 3 letters · shape VCV

Frequently Asked Questions

Can "ui" and "UTI" be used interchangeably?

No - they are not even the same part of speech. "ui" is an intj and "UTI" an abbrev, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "ui" or "UTI"?

"UTI" is the more common of the two: it sits at frequency rank #14,489 in our Portuguese list, against #19,875 for "ui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "ui" and "UTI" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "ui" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "UTI" - compare definitions side by side with the headword page. Word entry
This pair ranks #32,928 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"ui" and "UTI" also get mixed up with nearby pairs, the highest-scored neighbour is "ú vs ui". Nearby pair

Confusion rank #32,928 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.