Which to use
“T4” and “T5” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #24,791
- “T4” frequency rank
- #45,905
- “T5” frequency rank
- 70696
- confusion score
Side-by-Side Comparison
| Feature | T4 | T5 |
|---|---|---|
| Definition | Quatrième trimestre : octobre, novembre et décembre. | Cinquième vertèbre thoracique (de haut en bas). |
Where the eye mixes T4 and T5
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between T4 and T5
A purely visual mix-up. T4 (\te.katʁ\) and T5 (\te.sɛ̃k\) 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 a single letter - 4 in “T4” becomes 5 in “T5”. Our composite confusion score for this pair is 70696, derived from the frequency rank of both members and their visual similarity.
T4 is recorded at frequency rank #24,791, classified as anoun, pronounced \te.katʁ\. T5 is at rank #45,905, tagged as anoun, pronounced \te.sɛ̃k\.
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 70696, this pair ranks #50,385 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of T4 vs T5
Shared letters: t. Private to "T4": -. Private to "T5": -.
"T4" · 1 letters · shape C · "T5" · 1 letters · shape C
Frequently Asked Questions
Do "T4" and "T5" mean the same thing in a sentence?
Which is more common, "T4" or "T5"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "T4" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "T5" - compare definitions side by side with the headword page. Word entry
- This pair ranks #50,385 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "T4" and "T5" also get mixed up with nearby pairs, the highest-scored neighbour is "T5 vs tif". Nearby pair
Confusion rank #50,385 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.