keVvskouTell them apart

Quick tell: keV is a symbol, kou is a noun, so they fill different roles in a sentence.

Which to use

“keV” is a symbol and “kou” is a noun - they look or sound alike but fill different roles in a sentence.

#23,595
“keV” frequency rank
#47,413
“kou” frequency rank
71008
confusion score

Side-by-Side Comparison

Feature keV kou
Definition Symbole du kiloélectronvolt, unité de mesure d’énergie en dehors du Système international (mais dont l’usage est accepté avec le SI), valant 10³ électronvolts. Tambour chinois.

Letter map: keV vs kou

Shared letters muted; letters that set keV and kou apart highlighted. Shared run: 1. keV (CVC) and kou (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
keV
3 ch
kou

Role in the sentence - keV and kou

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: keV is asymbol and kouanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 71008, derived from the frequency rank of both members and their visual similarity.

keV is recorded at frequency rank #23,595, classified as asymbol. kou is at rank #47,413, tagged as anoun, pronounced \ku\.

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 71008, this pair ranks #49,147 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of keV vs kou

Shared letters: k. Private to "keV": ev. Private to "kou": ou.

"keV" · 3 letters · shape CVC  ·  "kou" · 3 letters · shape CVV

Frequently Asked Questions

Can "keV" and "kou" be used interchangeably?
No - they are not even the same part of speech. "keV" is a symbol and "kou" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "keV" or "kou" show up more?
"keV" is the more common of the two: it sits at frequency rank #23,595 in our French list, against #47,413 for "kou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "keV" and "kou". Here's where to go from here.

  • Full dictionary entry for "keV" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "kou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #49,147 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "keV" and "kou" also get mixed up with nearby pairs, the highest-scored neighbour is "kou vs ky". Nearby pair

Confusion rank #49,147 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