Clo vs Cui, What's the Difference?

Which to use

“Clo” is a noun and “Cui” is a name - they look or sound alike but fill different roles in a sentence.

#48,144
“Clo” frequency rank: #39,761
“Cui” frequency rank: 87905
confusion score

Side-by-Side Comparison

Feature	Clo	Cui
Definition	Abbreviation of close (in street addresses).	A surname from Mandarin.

Letter map: Clo vs Cui

Shared letters muted; letters that set Clo and Cui apart highlighted. Shared run: 1. Clo (CCV) and Cui (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch

Clo

3 ch

Cui

Role in the sentence - Clo and Cui

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Clo is anoun and Cuianame. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 87905, derived from the frequency rank of both members and their visual similarity.

Clo is recorded at frequency rank #48,144, classified as anoun. Cui is at rank #39,761, tagged as aname.

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 87905, this pair ranks #7,013 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Clo vs Cui

Shared letters: c. Private to "Clo": lo. Private to "Cui": iu.

"Clo" · 3 letters · shape CCV · "Cui" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "Clo" for "Cui" ever safe?

No - they are not even the same part of speech. "Clo" is a noun and "Cui" a name, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "Clo" or "Cui" show up more?

"Cui" is the more common of the two: it sits at frequency rank #39,761 in our English list, against #48,144 for "Clo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "Clo" and "Cui".

Full dictionary entry for "Clo" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "Cui" - compare definitions side by side with the headword page. Word entry
This pair ranks #7,013 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"Clo" and "Cui" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs Clo". Nearby pair

Confusion rank #7,013 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.