tosvstssWhich spelling fits?

Quick tell: tos is a noun, tss is an intj, so they fill different roles in a sentence.

Which to use

“tos” is a noun and “tss” is an intj - they look or sound alike but fill different roles in a sentence.

#48,234
“tos” frequency rank
#41,048
“tss” frequency rank
89282
confusion score

Side-by-Side Comparison

Feature tos tss
Definition Élève de première année à l’École polytechnique. Bruit d’agacement ou de désapprobation produit à l’aide d’un clic dental, transcrite /ǀ/ en API, aussi écrit tsk.

Where the eye mixes tos and tss

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

3 ch
tos
3 ch
tss

Why the eye confuses tos with tss

These two trip readers on the page rather than in the ear: tos is \tos\ while tss is \t͡s\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - o in “tos” becomes s in “tss”, and the parts of speech differ too (noun vs intj), which is usually the fastest check. Our composite confusion score for this pair is 89282, derived from the frequency rank of both members and their visual similarity.

tos is recorded at frequency rank #48,234, classified as anoun, pronounced \tos\. tss is at rank #41,048, tagged as anintj, pronounced \t͡s\.

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 89282, this pair ranks #5,971 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of tos vs tss

Shared letters: st. Private to "tos": o. Private to "tss": -.

"tos" · 3 letters · shape CVC  ·  "tss" · 3 letters · shape CCC

Frequently Asked Questions

Do "tos" and "tss" mean the same thing in a sentence?
No - they are not even the same part of speech. "tos" is a noun and "tss" an intj, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "tos" vs "tss" - which ranks higher?
"tss" is the more common of the two: it sits at frequency rank #41,048 in our French list, against #48,234 for "tos". 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 "tos" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tss" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #5,971 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "tos" and "tss" also get mixed up with nearby pairs, the highest-scored neighbour is "tif vs tos". Nearby pair

Confusion rank #5,971 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