primevspriusWhat's the difference?

Quick tell: prime is a adjective, prius is an adverb, so they fill different roles in a sentence.

Which to use

“prime” is an adjective and “prius” is an adverb - they look or sound alike but fill different roles in a sentence.

#8,611
“prime” frequency rank
#44,857
“prius” frequency rank
53468
confusion score

Side-by-Side Comparison

Feature prime prius
Definition Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs prim eher, vorher, früher, zuvor

Letter map: prime vs prius

Shared letters muted; letters that set prime and prius apart highlighted. Shared run: 3.

5 ch
prime
5 ch
prius

Grammar separator: prime vs prius

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: prime is anadjective and priusanadverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 53468, derived from the frequency rank of both members and their visual similarity.

prime is recorded at frequency rank #8,611, classified as anadj, pronounced [ˈpʁiːmə]. prius is at rank #44,857, tagged as anadv.

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 53468, this pair ranks #1,056,807 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of prime vs prius

Shared letters: ipr. Private to "prime": em. Private to "prius": su.

"prime" · 5 letters · shape CCVCV  ·  "prius" · 5 letters · shape CCVVC

Known mistypes of this pair

  • primepirme · pprime · priem · primme · prmie · prrime · rpime
  • priuspirus · pprius · prisu · priuss · prrius · pruis · rpius

Frequently Asked Questions

Can "prime" and "prius" be used interchangeably?
No - they are not even the same part of speech. "prime" is an adjective and "prius" an adverb, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "prime" or "prius" show up more?
"prime" is the more common of the two: it sits at frequency rank #8,611 in our German list, against #44,857 for "prius". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "prime" and "prius".

  • Full dictionary entry for "prime" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "prius" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,056,807 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "prime" and "prius" also get mixed up with nearby pairs, the highest-scored neighbour is "prius vs pros". 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 #1,056,807 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