Which to use
“vier” and “vitro” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #41,592
- “vier” frequency rank
- #22,137
- “vitro” frequency rank
- 63729
- confusion score
Side-by-Side Comparison
| Feature | vier | vitro |
|---|---|---|
| Definition | Pénis. | Verre (matière). |
Where the eye mixes vier and vitro
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. vier runs 4 letters (CVVC) against vitro's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses vier with vitro
A purely visual mix-up. vier (\vje\) and vitro (\ˈvi.tro\) 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 1 letter(s) in length. Our composite confusion score for this pair is 63729, derived from the frequency rank of both members and their visual similarity.
vier is recorded at frequency rank #41,592, classified as anoun, pronounced \vje\. vitro is at rank #22,137, tagged as anoun, pronounced \ˈvi.tro\.
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 63729, this pair ranks #80,491 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of vier vs vitro
Shared letters: irv. Private to "vier": e. Private to "vitro": ot.
"vier" · 4 letters · shape CVVC · "vitro" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "vier" for "vitro" ever safe?
In ordinary French text, does "vier" or "vitro" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "vier" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "vitro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #80,491 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "vier" and "vitro" also get mixed up with nearby pairs, the highest-scored neighbour is "vier vs viv". 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 #80,491 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.