tosvstriosTell them apart

Which to use

“tos” and “trios” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#48,234
“tos” frequency rank
#38,079
“trios” frequency rank
86313
confusion score

Side-by-Side Comparison

Feature tos trios
Definition Élève de première année à l’École polytechnique. Pluriel de trio.

Where the eye mixes tos and trios

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. tos runs 3 letters (CVC) against trios's 5 (CCVVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
tos
5 ch
trios

Visual trap between tos and trios

A purely visual mix-up. tos (\tos\) and trios (\tʁi.jo\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 86313, 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\. trios is at rank #38,079, tagged as anoun, pronounced \tʁi.jo\.

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 86313, this pair ranks #9,880 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of tos vs trios

Shared letters: ost. Private to "tos": -. Private to "trios": ir.

"tos" · 3 letters · shape CVC  ·  "trios" · 5 letters · shape CCVVC

Known mistypes of this pair

  • trios ← rtios · tiros · trioss · triso · trrios · ttrios

Frequently Asked Questions

Do "tos" and "trios" mean the same thing in a sentence?
No. They are said differently (\tos\ versus \tʁi.jo\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "tos" vs "trios" - which ranks higher?
"trios" is the more common of the two: it sits at frequency rank #38,079 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

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

  • Full dictionary entry for "tos" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "trios" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #9,880 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "tos" and "trios" also get mixed up with nearby pairs, the highest-scored neighbour is "tif vs tos". 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 #9,880 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