ThomvstrouWhich spelling fits?

Quick tell: Thom is a name, trou is a noun, so they fill different roles in a sentence.

Which to use

“Thom” is a name and “trou” is a noun - they look or sound alike but fill different roles in a sentence.

#39,071
“Thom” frequency rank
#2,396
“trou” frequency rank
41467
confusion score

Side-by-Side Comparison

Feature Thom trou
Definition Nom de famille. Ouverture au travers d’un corps ou qui y pénètre à une certaine profondeur.

Where the eye mixes Thom and trou

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
Thom
4 ch
trou

Why the eye confuses Thom with trou

These two trip readers on the page rather than in the ear: Thom is \tom\ while trou is \tʁu\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 41467, derived from the frequency rank of both members and their visual similarity.

Thom is recorded at frequency rank #39,071, classified as aname, pronounced \tom\. trou is at rank #2,396, tagged as anoun, pronounced \tʁu\.

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 41467, this pair ranks #232,866 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Thom vs trou

Shared letters: ot. Private to "Thom": hm. Private to "trou": ru.

"Thom" · 4 letters · shape CCVC  ·  "trou" · 4 letters · shape CCVV

Known mistypes of this pair

  • Thomhtom · thhom · thmo · thomm · tohm · tthom
  • trourtou · trrou · truo · ttrou

Frequently Asked Questions

Is swapping "Thom" for "trou" ever safe?
No - they are not even the same part of speech. "Thom" is a name and "trou" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "Thom" or "trou" show up more?
"trou" is the more common of the two: it sits at frequency rank #2,396 in our French list, against #39,071 for "Thom". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "Thom" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "trou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #232,866 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Thom" and "trou" also get mixed up with nearby pairs, the highest-scored neighbour is "Thom vs tos". 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 #232,866 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