saisvssusWhat's the difference?

Quick tell: sais is a noun, sus is an adverb, so they fill different roles in a sentence.

Which to use

“sais” is a noun and “sus” is an adverb - they look or sound alike but fill different roles in a sentence.

#188
“sais” frequency rank
#12,488
“sus” frequency rank
12676
confusion score

Side-by-Side Comparison

Feature sais sus
Definition En Inde, palefrenier qui accompagne son maître lors de ses sorties à cheval. Dessus.

Where the eye mixes sais and sus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
sais
3 ch
sus

Visual trap between sais and sus

These two trip readers on the page rather than in the ear: sais is \sɛ\ while sus is \sys\. 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 adverb), which is usually the fastest check. Our composite confusion score for this pair is 12676, derived from the frequency rank of both members and their visual similarity.

sais is recorded at frequency rank #188, classified as anoun, pronounced \sɛ\. sus is at rank #12,488, tagged as anadv, pronounced \sys\.

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 12676, this pair ranks #404,271 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sais vs sus

Shared letters: s. Private to "sais": ai. Private to "sus": u.

"sais" · 4 letters · shape CVVC  ·  "sus" · 3 letters · shape CVC

Known mistypes of this pair

  • saisasis · saiss · sasi · sias · ssais

Frequently Asked Questions

Is swapping "sais" for "sus" ever safe?
No - they are not even the same part of speech. "sais" is a noun and "sus" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sais" or "sus"?
"sais" is the more common of the two: it sits at frequency rank #188 in our French list, against #12,488 for "sus". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "sais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #404,271 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sais" and "sus" also get mixed up with nearby pairs, the highest-scored neighbour is "sus vs suu". 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 #404,271 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