sulvssuuConfusable pair

Quick tell: sul is a article, suu is an adjective, so they fill different roles in a sentence.

Which to use

“sul” is an article and “suu” is an adjective - they look or sound alike but fill different roles in a sentence.

#33,033
“sul” frequency rank
#49,960
“suu” frequency rank
82993
confusion score

Side-by-Side Comparison

Feature sul suu
Definition Sur le. Son.

Where the eye mixes sul and suu

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. sul (CVC) and suu (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
sul
3 ch
suu

Look-alike desk: sul vs suu

These two trip readers on the page rather than in the ear: sul is \ˈsul\ while suu is \ˈsuː\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “sul” becomes u in “suu”, and the parts of speech differ too (article vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 82993, derived from the frequency rank of both members and their visual similarity.

sul is recorded at frequency rank #33,033, classified as anarticle, pronounced \ˈsul\. suu is at rank #49,960, tagged as anadj, pronounced \ˈsuː\.

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 82993, this pair ranks #15,639 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of sul vs suu

Shared letters: su. Private to "sul": l. Private to "suu": -.

"sul" · 3 letters · shape CVC  ·  "suu" · 3 letters · shape CVV

Frequently Asked Questions

Do "sul" and "suu" mean the same thing in a sentence?
No - they are not even the same part of speech. "sul" is an article and "suu" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "sul" or "suu" show up more?
"sul" is the more common of the two: it sits at frequency rank #33,033 in our French list, against #49,960 for "suu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sul" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #15,639 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sul" and "suu" also get mixed up with nearby pairs, the highest-scored neighbour is "SSR vs suu". Nearby pair

Confusion rank #15,639 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list