extensionvsmoraTell them apart

Quick tell: extension is a noun, mora is an unknown, so they fill different roles in a sentence.

Which to use

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

#33,032
“extension” frequency rank
#49,903
“mora” frequency rank
82935
confusion score

Side-by-Side Comparison

Feature extension mora
Definition Ausdehnung, Erweiterung, Umfang 1. Person Singular Aorist Indikativ Nichtadmirativ Aktiv zur Verbform marr „nehmen“

Letter map: extension vs mora

Shared letters muted; letters that set extension and mora apart highlighted. Shared run: 1.

9 ch
extension
4 ch
mora

Grammar separator: extension vs mora

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: extension is anoun and moraanunknown. On the page they differ by 5 letter(s) in length. Our composite confusion score for this pair is 82935, derived from the frequency rank of both members and their visual similarity.

extension is recorded at frequency rank #33,032, classified as anoun, pronounced […]. mora is at rank #49,903, tagged as anunknown, pronounced […].

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 82935, this pair ranks #148,456 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of extension vs mora

Shared letters: o. Private to "extension": einstx. Private to "mora": amr.

"extension" · 9 letters · shape VCCVCCVVC  ·  "mora" · 4 letters · shape CVCV

Known mistypes of this pair

  • extensionetxension · exetnsion · extenison · extennsion · extensino · extensionn · extensoin · extenssion
  • morammora · moar · morra · mroa · omra

Frequently Asked Questions

Can "extension" and "mora" be used interchangeably?
No - they are not even the same part of speech. "extension" is a noun and "mora" an unknown, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "extension" or "mora" show up more?
"extension" is the more common of the two: it sits at frequency rank #33,032 in our German list, against #49,903 for "mora". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "extension" and "mora". Here's where to go from here.

  • Full dictionary entry for "extension" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mora" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #148,456 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "extension" and "mora" also get mixed up with nearby pairs, the highest-scored neighbour is "mora vs puzzles". 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 #148,456 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