seavssuConfusable pair

Quick tell: sea is a noun, su is a verb, so they fill different roles in a sentence.

Which to use

“sea” is a noun and “su” is a verb - they look or sound alike but fill different roles in a sentence.

#13,258
“sea” frequency rank
#1,609
“su” frequency rank
14867
confusion score

Side-by-Side Comparison

Feature sea su
Definition Mer. Participe passé masculin singulier du verbe savoir.

Where the eye mixes sea and su

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

3 ch
sea
2 ch
su

Look-alike desk: sea vs su

These two trip readers on the page rather than in the ear: sea is \siː\ while su is \sy\. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 14867, derived from the frequency rank of both members and their visual similarity.

sea is recorded at frequency rank #13,258, classified as anoun, pronounced \siː\. su is at rank #1,609, tagged as averb, pronounced \sy\.

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 14867, this pair ranks #394,877 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sea vs su

Shared letters: s. Private to "sea": ae. Private to "su": u.

"sea" · 3 letters · shape CVV  ·  "su" · 2 letters · shape CV

Frequently Asked Questions

Can "sea" and "su" be used interchangeably?
No - they are not even the same part of speech. "sea" is a noun and "su" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "sea" or "su" show up more?
"su" is the more common of the two: it sits at frequency rank #1,609 in our French list, against #13,258 for "sea". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "sea" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "su" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #394,877 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sea" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "sea vs suu". Nearby pair

Confusion rank #394,877 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