Which to use
“tain” is a noun and “thaïs” is an adjective - they look or sound alike but fill different roles in a sentence.
- #19,170
- “tain” frequency rank
- #42,083
- “thaïs” frequency rank
- 61253
- confusion score
Side-by-Side Comparison
| Feature | tain | thaïs |
|---|---|---|
| Definition | Feuille ou lame très mince formée d’un amalgame de 80% d’étain et de 20% de mercure, qu’on appliquait derrière une glace pour qu’elle réfléchisse les objets, actuellement il s'agit d'un composé à l'argent métallique. | Masculin pluriel de thaï. |
Where the eye mixes tain and thaïs
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses tain with thaïs
These two trip readers on the page rather than in the ear: tain is \tɛ̃\ while thaïs is \taj\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 61253, derived from the frequency rank of both members and their visual similarity.
tain is recorded at frequency rank #19,170, classified as anoun, pronounced \tɛ̃\. thaïs is at rank #42,083, tagged as anadj, pronounced \taj\.
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 61253, this pair ranks #93,250 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of tain vs thaïs
Shared letters: at. Private to "tain": in. Private to "thaïs": hsï.
"tain" · 4 letters · shape CVVC · "thaïs" · 5 letters · shape CCVCC
Known mistypes of this pair
- tain ← atin · tainn · tani · ttain
Frequently Asked Questions
Can "tain" and "thaïs" be used interchangeably?
Which is more common, "tain" or "thaïs"?
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 "tain" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "thaïs" - compare definitions side by side with the headword page. Word entry
- This pair ranks #93,250 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "tain" and "thaïs" also get mixed up with nearby pairs, the highest-scored neighbour is "thaïs vs thons". 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 #93,250 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.