CuivscumsWhat's the difference?

Quick tell: Cui is a name, cums is a verb, so they fill different roles in a sentence.

Which to use

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

#39,761
“Cui” frequency rank
#45,869
“cums” frequency rank
85630
confusion score

Side-by-Side Comparison

Feature Cui cums
Definition A surname from Mandarin. third-person singular simple present indicative of cum

Letter map: Cui vs cums

Shared letters muted; letters that set Cui and cums apart highlighted. Shared run: 2. Cui runs 3 letters (CVV) against cums's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
Cui
4 ch
cums

Grammar separator: Cui vs cums

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Cui is aname and cumsaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 85630, derived from the frequency rank of both members and their visual similarity.

Cui is recorded at frequency rank #39,761, classified as aname. cums is at rank #45,869, tagged as averb, pronounced /kʌmz/.

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 85630, this pair ranks #10,092 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Cui vs cums

Shared letters: cu. Private to "Cui": i. Private to "cums": ms.

"Cui" · 3 letters · shape CVV  ·  "cums" · 4 letters · shape CVCC

Known mistypes of this pair

  • cums ← ccums · cmus · cumms · cumss · cusm · ucms

Frequently Asked Questions

Is swapping "Cui" for "cums" ever safe?
No - they are not even the same part of speech. "Cui" is a name and "cums" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Cui" vs "cums" - which ranks higher?
"Cui" is the more common of the two: it sits at frequency rank #39,761 in our English list, against #45,869 for "cums". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "Cui" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cums" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #10,092 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Cui" and "cums" also get mixed up with nearby pairs, the highest-scored neighbour is "cums vs cuny". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #10,092 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list