THCvsthuWhich spelling fits?

Which to use

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

#43,694
“THC” frequency rank
#48,228
“thu” frequency rank
91922
confusion score

Side-by-Side Comparison

Feature THC thu
Definition Abréviation de tétrahydrocannabinol. Forme mutée de tu par spirantisation.

Where the eye mixes THC and thu

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

3 ch
THC
3 ch
thu

Look-alike desk: THC vs thu

A purely visual mix-up. THC (\te.aʃ.se\) and thu (\θɨː\) 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 - c in “THC” becomes u in “thu”. Our composite confusion score for this pair is 91922, derived from the frequency rank of both members and their visual similarity.

THC is recorded at frequency rank #43,694, classified as anoun, pronounced \te.aʃ.se\. thu is at rank #48,228, tagged as anoun, pronounced \θɨː\.

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 91922, this pair ranks #3,412 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of THC vs thu

Shared letters: ht. Private to "THC": c. Private to "thu": u.

"THC" · 3 letters · shape CCC  ·  "thu" · 3 letters · shape CCV

Frequently Asked Questions

Can "THC" and "thu" be used interchangeably?
No. They are said differently (\te.aʃ.se\ versus \θɨː\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "THC" vs "thu" - which ranks higher?
"THC" is the more common of the two: it sits at frequency rank #43,694 in our French list, against #48,228 for "thu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "THC" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "thu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,412 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "THC" and "thu" also get mixed up with nearby pairs, the highest-scored neighbour is "thu vs tif". Nearby pair

Confusion rank #3,412 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