clouvsCPUWhich spelling fits?

Which to use

“clou” and “CPU” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#39,272
“clou” frequency rank
#11,404
“CPU” frequency rank
50676
confusion score

Side-by-Side Comparison

Feature clou CPU
Definition Nagel Hauptprozessor in einem Computer

Where the eye mixes clou and CPU

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

4 ch
clou
3 ch
CPU

Look-alike desk: clou vs CPU

A purely visual mix-up. clou ([klu]) and CPU ([t͡seːpeːˈʔuː]) 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 1 letter(s) in length. Our composite confusion score for this pair is 50676, derived from the frequency rank of both members and their visual similarity.

clou is recorded at frequency rank #39,272, classified as anoun, pronounced [klu]. CPU is at rank #11,404, tagged as anoun, pronounced [t͡seːpeːˈʔuː].

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 50676, this pair ranks #1,164,731 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of clou vs CPU

Shared letters: cu. Private to "clou": lo. Private to "CPU": p.

"clou" · 4 letters · shape CCVV  ·  "CPU" · 3 letters · shape CCV

Known mistypes of this pair

  • cloucclou · cllou · cluo · colu · lcou

Frequently Asked Questions

Can "clou" and "CPU" be used interchangeably?
No. They are said differently ([klu] versus [t͡seːpeːˈʔuː]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "clou" vs "CPU" - which ranks higher?
"CPU" is the more common of the two: it sits at frequency rank #11,404 in our German list, against #39,272 for "clou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "clou" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CPU" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,164,731 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "clou" and "CPU" also get mixed up with nearby pairs, the highest-scored neighbour is "clock vs clou". 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 #1,164,731 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list