SinusvsSiouxWhat's the difference?

Which to use

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

#36,626
“Sinus” frequency rank
#44,918
“Sioux” frequency rank
81544
confusion score

Side-by-Side Comparison

Feature Sinus Sioux
Definition eine trigonometrische Funktion Angehöriger/Angehörige eines nordamerikanischen Indianervolkes ohne Aussage über das natürliche Geschlecht; im Plural auch kollektiv: Volk/Stamm der Sioux

Where the eye mixes Sinus and Sioux

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
Sinus
5 ch
Sioux

Visual trap between Sinus and Sioux

A purely visual mix-up. Sinus ([ˈziːnʊs]) and Sioux ([ˈziːʊks]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 81544, derived from the frequency rank of both members and their visual similarity.

Sinus is recorded at frequency rank #36,626, classified as anoun, pronounced [ˈziːnʊs]. Sioux is at rank #44,918, tagged as anoun, pronounced [ˈziːʊks].

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 81544, this pair ranks #173,752 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of Sinus vs Sioux

Shared letters: isu. Private to "Sinus": n. Private to "Sioux": ox.

"Sinus" · 5 letters · shape CVCVC  ·  "Sioux" · 5 letters · shape CVVVC

Known mistypes of this pair

  • Sinusisnus · sinnus · sinsu · sinuss · siuns · snius · ssinus
  • Siouxisoux · siouxx · sioxu · siuox · soiux · ssioux

Frequently Asked Questions

Can "Sinus" and "Sioux" be used interchangeably?
No. They are said differently ([ˈziːnʊs] versus [ˈziːʊks]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "Sinus" vs "Sioux" - which ranks higher?
"Sinus" is the more common of the two: it sits at frequency rank #36,626 in our German list, against #44,918 for "Sioux". 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 "Sinus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Sioux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #173,752 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Sinus" and "Sioux" also get mixed up with nearby pairs, the highest-scored neighbour is "sands vs Sinus". 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 #173,752 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