thuvstunTell them apart

Which to use

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

#48,228
“thu” frequency rank
#49,414
“tun” frequency rank
97642
confusion score

Side-by-Side Comparison

Feature thu tun
Definition Forme mutée de tu par spirantisation. Craie glauconieuse.

Where the eye mixes thu and tun

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. thu (CCV) and tun (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
thu
3 ch
tun

Visual trap between thu and tun

A purely visual mix-up. thu (\θɨː\) and tun (\tyn\) 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 97642, derived from the frequency rank of both members and their visual similarity.

thu is recorded at frequency rank #48,228, classified as anoun, pronounced \θɨː\. tun is at rank #49,414, tagged as anoun, pronounced \tyn\.

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 97642, this pair ranks #291 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of thu vs tun

Shared letters: tu. Private to "thu": h. Private to "tun": n.

"thu" · 3 letters · shape CCV  ·  "tun" · 3 letters · shape CVC

Frequently Asked Questions

Can "thu" and "tun" be used interchangeably?
No. They are said differently (\θɨː\ versus \tyn\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "thu" or "tun" show up more?
"thu" is the more common of the two: it sits at frequency rank #48,228 in our French list, against #49,414 for "tun". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "thu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #291 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "thu" and "tun" also get mixed up with nearby pairs, the highest-scored neighbour is "tif vs tun". Nearby pair

Confusion rank #291 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