SkivsstuWhat's the difference?

Quick tell: Ski is a noun, stu is an unknown, so they fill different roles in a sentence.

Which to use

“Ski” is a noun and “stu” is an unknown - they look or sound alike but fill different roles in a sentence.

#5,880
“Ski” frequency rank
#47,032
“stu” frequency rank
52912
confusion score

Side-by-Side Comparison

Feature Ski stu
Definition Gleitgerät zur Fortbewegung im Schnee oder Wasser Dativ Singular des Numerales sto

Where the eye mixes Ski and stu

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
Ski
3 ch
stu

Look-alike desk: Ski vs stu

These two trip readers on the page rather than in the ear: Ski is [ʃiː] while stu is [stʊ]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs unknown), which is usually the fastest check. Our composite confusion score for this pair is 52912, derived from the frequency rank of both members and their visual similarity.

Ski is recorded at frequency rank #5,880, classified as anoun, pronounced [ʃiː]. stu is at rank #47,032, tagged as anunknown, pronounced [stʊ].

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 52912, this pair ranks #1,078,422 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Ski vs stu

Shared letters: s. Private to "Ski": ik. Private to "stu": tu.

"Ski" · 3 letters · shape CCV  ·  "stu" · 3 letters · shape CCV

Frequently Asked Questions

Can "Ski" and "stu" be used interchangeably?
No - they are not even the same part of speech. "Ski" is a noun and "stu" an unknown, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Ski" or "stu" show up more?
"Ski" is the more common of the two: it sits at frequency rank #5,880 in our German list, against #47,032 for "stu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "Ski" and "stu" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "Ski" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "stu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,078,422 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Ski" and "stu" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs stu". Nearby pair

Confusion rank #1,078,422 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