tonusvstoolsWhich spelling fits?

Which to use

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

#35,755
“tonus” frequency rank
#48,232
“tools” frequency rank
83987
confusion score

Side-by-Side Comparison

Feature tonus tools
Definition Tension, contraction légère et permanente, tenue des muscles. Pluriel de tool.

Where the eye mixes tonus and tools

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
tonus
5 ch
tools

Why the eye confuses tonus with tools

A purely visual mix-up. tonus (\tɔ.nys\) and tools (\tuːlz\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 83987, derived from the frequency rank of both members and their visual similarity.

tonus is recorded at frequency rank #35,755, classified as anoun, pronounced \tɔ.nys\. tools is at rank #48,232, tagged as anoun, pronounced \tuːlz\.

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 83987, this pair ranks #13,807 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of tonus vs tools

Shared letters: ost. Private to "tonus": nu. Private to "tools": l.

"tonus" · 5 letters · shape CVCVC  ·  "tools" · 5 letters · shape CVVCC

Known mistypes of this pair

  • tonusotnus · tnous · tonnus · tonsu · tonuss · touns · ttonus
  • toolsotols · tolos · tols · toolls · toolss · toosl · ttools

Frequently Asked Questions

Do "tonus" and "tools" mean the same thing in a sentence?
No. They are said differently (\tɔ.nys\ versus \tuːlz\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "tonus" vs "tools" - which ranks higher?
"tonus" is the more common of the two: it sits at frequency rank #35,755 in our French list, against #48,232 for "tools". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "tonus" and "tools" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "tonus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tools" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #13,807 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "tonus" and "tools" also get mixed up with nearby pairs, the highest-scored neighbour is "tools 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 #13,807 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