SHvssuWhich spelling fits?

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

Which to use

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

#26,183
“SH” frequency rank
#1,609
“su” frequency rank
27792
confusion score

Side-by-Side Comparison

Feature SH su
Definition Sens horaire. Participe passé masculin singulier du verbe savoir.

Where the eye mixes SH and su

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

2 ch
SH
2 ch
su

Look-alike desk: SH vs su

These two trip readers on the page rather than in the ear: SH is \sɑ̃.s‿ɔ.ʁɛʁ\ while su is \sy\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - h in “SH” becomes u in “su”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 27792, derived from the frequency rank of both members and their visual similarity.

SH is recorded at frequency rank #26,183, classified as anoun, pronounced \sɑ̃.s‿ɔ.ʁɛʁ\. 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 27792, this pair ranks #326,720 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of SH vs su

Shared letters: s. Private to "SH": h. Private to "su": u.

"SH" · 2 letters · shape CC  ·  "su" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "SH" for "su" ever safe?
No - they are not even the same part of speech. "SH" is a noun and "su" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "SH" 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 #26,183 for "SH". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "SH" 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 #326,720 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "SH" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "SH vs suu". Nearby pair

Confusion rank #326,720 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