SuffvsSuiTell them apart

Quick tell: Suff is a noun, Sui is a name, so they fill different roles in a sentence.

Which to use

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

#42,164
“Suff” frequency rank
#28,407
“Sui” frequency rank
70571
confusion score

Side-by-Side Comparison

Feature Suff Sui
Definition Trunk- oder Alkoholsucht Ort in der pakistanischen Provinz Belutschistan

Letter map: Suff vs Sui

Shared letters muted; letters that set Suff and Sui apart highlighted. Shared run: 2.

4 ch
Suff
3 ch
Sui

Role in the sentence - Suff and Sui

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Suff is anoun and Suianame. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 70571, derived from the frequency rank of both members and their visual similarity.

Suff is recorded at frequency rank #42,164, classified as anoun, pronounced [zʊf]. Sui is at rank #28,407, tagged as aname, pronounced […].

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 70571, this pair ranks #442,284 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of Suff vs Sui

Shared letters: su. Private to "Suff": f. Private to "Sui": i.

"Suff" · 4 letters · shape CVCC  ·  "Sui" · 3 letters · shape CVV

Known mistypes of this pair

  • Suffsfuf · ssuff · suf · usff

Frequently Asked Questions

Can "Suff" and "Sui" be used interchangeably?
No - they are not even the same part of speech. "Suff" is a noun and "Sui" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Suff" vs "Sui" - which ranks higher?
"Sui" is the more common of the two: it sits at frequency rank #28,407 in our German list, against #42,164 for "Suff". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "Suff" and "Sui". Here's where to go from here.

  • Full dictionary entry for "Suff" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Sui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #442,284 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Suff" and "Sui" also get mixed up with nearby pairs, the highest-scored neighbour is "Suff vs surft". 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 #442,284 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list