stuvssurConfusable pair

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

Which to use

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

#47,032
“stu” frequency rank
#7,401
“sur” frequency rank
54433
confusion score

Side-by-Side Comparison

Feature stu sur
Definition Dativ Singular des Numerales sto 2. Person Singular Imperativ Präsens Aktiv des Verbs suren

Where the eye mixes stu and sur

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

3 ch
stu
3 ch
sur

Look-alike desk: stu vs sur

These two trip readers on the page rather than in the ear: stu is [stʊ] while sur is [zuːɐ̯]. 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 (unknown vs verb), which is usually the fastest check. Our composite confusion score for this pair is 54433, 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]. sur is at rank #7,401, tagged as averb, pronounced [zuːɐ̯].

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 54433, this pair ranks #1,019,097 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of stu vs sur

Shared letters: su. Private to "stu": t. Private to "sur": r.

"stu" · 3 letters · shape CCV  ·  "sur" · 3 letters · shape CVC

Frequently Asked Questions

Can "stu" and "sur" be used interchangeably?
No - they are not even the same part of speech. "stu" is an unknown and "sur" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "stu" or "sur"?
"sur" is the more common of the two: it sits at frequency rank #7,401 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.

After this comparison

Eye-level mix-up between "stu" and "sur" 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 "sur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,019,097 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "stu" and "sur" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs stu". Nearby pair

Confusion rank #1,019,097 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