thou vs trou, What's the Difference?

Which to use

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

#44,777
“thou” frequency rank: #2,396
“trou” frequency rank: 47173
confusion score

Side-by-Side Comparison

Feature	thou	trou
Definition	Écluse en pierre ou en béton permettant de vider lentement les étangs de la Dombes dans l'Ain.	Ouverture au travers d’un corps ou qui y pénètre à une certaine profondeur.

Where the spellings diverge

Shared letters are muted; the letters that actually set thou and trou apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

4 ch

thou

4 ch

trou

Spelling & Dictionary Insight

A purely visual mix-up. thou (\tu\) and trou (\tʁu\) 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 - h in “thou” becomes r in “trou”. Our composite confusion score for this pair is 47173, derived from the frequency rank of both members and their visual similarity.

thou is recorded at frequency rank #44,777, classified as anoun, pronounced \tu\. 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 47173, this pair ranks #188,996 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of thou vs trou

Shared letters: otu. Private to "thou": h. Private to "trou": r.

"thou" · 4 letters · shape CCVV · "trou" · 4 letters · shape CCVV

Known mistypes of this pair

thou ← htou · thhou · thuo · tohu · tthou
trou ← rtou · trrou · truo · ttrou

Frequency comparison

thou#44,777

trou#2,396

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "thou" and "trou" be used interchangeably?

No. They are said differently (\tu\ versus \tʁu\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "thou" or "trou"?

"trou" is the more common of the two: it sits at frequency rank #2,396 in our French list, against #44,777 for "thou". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering thou vs trou

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “thou” entry
Browse more pairs most likely to be confused. Most confusable