Which to use
“Alster” is a name and “Altern” is a noun - they look or sound alike but fill different roles in a sentence.
- #32,403
- “Alster” frequency rank
- #18,796
- “Altern” frequency rank
- 51199
- confusion score
Side-by-Side Comparison
| Feature | Alster | Altern |
|---|---|---|
| Definition | rechter Nebenfluss der Unterelbe | Älterwerden |
Where the eye mixes Alster and Altern
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. Alster (VCCCVC) and Altern (VCCVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: Alster vs Altern
These two trip readers on the page rather than in the ear: Alster is [ˈalstɐ] while Altern is [ˈaltɐn]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 4 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 51199, derived from the frequency rank of both members and their visual similarity.
Alster is recorded at frequency rank #32,403, classified as aname, pronounced [ˈalstɐ]. Altern is at rank #18,796, tagged as anoun, pronounced [ˈaltɐn].
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 51199, this pair ranks #1,144,666 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Alster vs Altern
Shared letters: aelrt. Private to "Alster": s. Private to "Altern": n.
"Alster" · 6 letters · shape VCCCVC · "Altern" · 6 letters · shape VCCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "Alster" for "Altern" ever safe?
Which is more common, "Alster" or "Altern"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "Alster" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Altern" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,144,666 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Alster" and "Altern" also get mixed up with nearby pairs, the highest-scored neighbour is "Alster vs Auster". 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 #1,144,666 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.