AlstervsaltersWhich spelling fits?

Quick tell: Alster is a name, alters is an adverb, so they fill different roles in a sentence.

Which to use

“Alster” is a name and “alters” is an adverb - they look or sound alike but fill different roles in a sentence.

#32,403
“Alster” frequency rank
#6,387
“alters” frequency rank
38790
confusion score

Side-by-Side Comparison

Feature Alster alters
Definition rechter Nebenfluss der Unterelbe seit jeher, seit langer Zeit

Where the eye mixes Alster and alters

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. Alster (VCCCVC) and alters (VCCVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
Alster
6 ch
alters

Why the eye confuses Alster with alters

These two trip readers on the page rather than in the ear: Alster is [ˈalstɐ] while alters is [ˈaltɐs]. Spoken aloud the problem disappears. In writing it persists, because they are an anagram pair: the same letters reordered, and the parts of speech differ too (name vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 38790, 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]. alters is at rank #6,387, tagged as anadv, pronounced [ˈaltɐs].

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 38790, this pair ranks #1,554,534 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Alster vs alters

Shared letters: aelrst. Private to "Alster": -. Private to "alters": -.

"Alster" · 6 letters · shape VCCCVC  ·  "alters" · 6 letters · shape VCCVCC

Known mistypes of this pair

  • Alster ← allster · alsetr · alsster · alsterr · alstre · alstter · altser · aslter
  • alters ← aletrs · allters · alterrs · alterss · altesr · altres · altters · atlers

Frequently Asked Questions

Is swapping "Alster" for "alters" ever safe?
No - they are not even the same part of speech. "Alster" is a name and "alters" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Alster" vs "alters" - which ranks higher?
"alters" is the more common of the two: it sits at frequency rank #6,387 in our German list, against #32,403 for "Alster". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Alster" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "alters" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,554,534 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Alster" and "alters" 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 #1,554,534 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