altersvsaltertWhich spelling fits?

Quick tell: alters is a adverb, altert is a verb, so they fill different roles in a sentence.

Which to use

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

#6,387
“alters” frequency rank
#46,458
“altert” frequency rank
52845
confusion score

Side-by-Side Comparison

Feature alters altert
Definition seit jeher, seit langer Zeit 2. Person Plural Imperativ Präsens Aktiv des Verbs altern

Where the eye mixes alters and altert

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. alters and altert follow the identical consonant-vowel pattern (VCCVCC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
alters
6 ch
altert

Why the eye confuses alters with altert

These two trip readers on the page rather than in the ear: alters is [ˈaltɐs] while altert is [ˈaltɐt]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - s in “alters” becomes t in “altert”, and the parts of speech differ too (adverb vs verb), which is usually the fastest check. Our composite confusion score for this pair is 52845, derived from the frequency rank of both members and their visual similarity.

alters is recorded at frequency rank #6,387, classified as anadv, pronounced [ˈaltɐs]. altert is at rank #46,458, tagged as averb, pronounced [ˈaltɐt].

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 52845, this pair ranks #1,081,063 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alters vs altert

Shared letters: aelrt. Private to "alters": s. Private to "altert": -.

"alters" · 6 letters · shape VCCVCC  ·  "altert" · 6 letters · shape VCCVCC

Known mistypes of this pair

  • alters ← aletrs · allters · alterrs · alterss · altesr · altres · altters · atlers
  • altert ← aletrt · alltert · alterrt · altertt · altetr · altret · alttert · atlert

Frequently Asked Questions

Can "alters" and "altert" be used interchangeably?
No - they are not even the same part of speech. "alters" is an adverb and "altert" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "alters" or "altert" show up more?
"alters" is the more common of the two: it sits at frequency rank #6,387 in our German list, against #46,458 for "altert". 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 "alters" and "altert" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "alters" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "altert" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,081,063 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "alters" and "altert" also get mixed up with nearby pairs, the highest-scored neighbour is "altars vs altert". 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 #1,081,063 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