stuvssyConfusable pair

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

Which to use

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

#47,032
“stu” frequency rank
#37,807
“sy” frequency rank
84839
confusion score

Side-by-Side Comparison

Feature stu sy
Definition Dativ Singular des Numerales sto Auge

Where the eye mixes stu and sy

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. stu runs 3 letters (CCV) against sy's 2 (CV) - the length gap alone is often enough to separate them once you know to check it.

3 ch
stu
2 ch
sy

Why the eye confuses stu with sy

These two trip readers on the page rather than in the ear: stu is [stʊ] while sy is [sy]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (unknown vs noun), which is usually the fastest check. Our composite confusion score for this pair is 84839, derived from the frequency rank of both members and their visual similarity.

stu is recorded at frequency rank #47,032, classified as anunknown, pronounced [stʊ]. sy is at rank #37,807, tagged as anoun, pronounced [sy].

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 84839, this pair ranks #117,432 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of stu vs sy

Shared letters: s. Private to "stu": tu. Private to "sy": y.

"stu" · 3 letters · shape CCV  ·  "sy" · 2 letters · shape CV

Frequently Asked Questions

Do "stu" and "sy" mean the same thing in a sentence?
No - they are not even the same part of speech. "stu" is an unknown and "sy" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "stu" or "sy" show up more?
"sy" is the more common of the two: it sits at frequency rank #37,807 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.

Useful next steps

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

  • Full dictionary entry for "stu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #117,432 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "stu" and "sy" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs stu". Nearby pair

Confusion rank #117,432 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