kmvskouWhat's the difference?

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

Which to use

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

#1,030
“km” frequency rank
#47,413
“kou” frequency rank
48443
confusion score

Side-by-Side Comparison

Feature km kou
Definition Symbole du kilomètre, unité de mesure de longueur du Système international (SI), valant 1000 mètres (10³ mètres). Tambour chinois.

Letter map: km vs kou

Shared letters muted; letters that set km and kou apart highlighted. Shared run: 1.

2 ch
km
3 ch
kou

Part-of-speech tell for km / kou

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: km is asymbol and kouanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48443, derived from the frequency rank of both members and their visual similarity.

km is recorded at frequency rank #1,030, 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 48443, this pair ranks #178,906 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of km vs kou

Shared letters: k. Private to "km": m. Private to "kou": ou.

"km" · 2 letters · shape CC  ·  "kou" · 3 letters · shape CVV

Frequently Asked Questions

Do "km" and "kou" mean the same thing in a sentence?
No - they are not even the same part of speech. "km" is a symbol and "kou" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "km" or "kou"?
"km" is the more common of the two: it sits at frequency rank #1,030 in our French list, against #47,413 for "kou". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "km" and "kou".

  • Full dictionary entry for "km" 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 #178,906 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "km" and "kou" also get mixed up with nearby pairs, the highest-scored neighbour is "kou vs ky". Nearby pair

Confusion rank #178,906 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