ui vs UNO, What's the Difference?

Which to use

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

#13,713
“ui” frequency rank: #7,409
“UNO” frequency rank: 21122
confusion score

Side-by-Side Comparison

Feature	ui	UNO
Definition	Ausdruck des Bestaunens	United Nations Organisation; Vereinte Nationen, Organisation der Vereinten Nationen

Where the eye mixes ui and UNO

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch

3 ch

UNO

Look-alike desk: ui vs UNO

These two trip readers on the page rather than in the ear: ui is [ʊɪ̯] while UNO is [ˈuːno]. 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 noun), which is usually the fastest check. Our composite confusion score for this pair is 21122, derived from the frequency rank of both members and their visual similarity.

ui is recorded at frequency rank #13,713, classified as anintj, pronounced [ʊɪ̯]. UNO is at rank #7,409, tagged as anoun, pronounced [ˈuːno].

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 21122, this pair ranks #1,889,944 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ui vs UNO

Shared letters: u. Private to "ui": i. Private to "UNO": no.

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

Frequently Asked Questions

Is swapping "ui" for "UNO" ever safe?

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

Frequency check: "ui" vs "UNO" - which ranks higher?

"UNO" is the more common of the two: it sits at frequency rank #7,409 in our German list, against #13,713 for "ui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "ui" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "UNO" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,889,944 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"ui" and "UNO" also get mixed up with nearby pairs, the highest-scored neighbour is "uch vs ui". Nearby pair

Confusion rank #1,889,944 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.