costvsomniumWhat's the difference?

Quick tell: cost is a noun, omnium is an adjective, so they fill different roles in a sentence.

Which to use

“cost” is a noun and “omnium” is an adjective - they look or sound alike but fill different roles in a sentence.

#27,668
“cost” frequency rank
#49,940
“omnium” frequency rank
77608
confusion score

Side-by-Side Comparison

Feature cost omnium
Definition Kosten Genitiv Plural Maskulinum des Adjektivs omnis

Letter map: cost vs omnium

Shared letters muted; letters that set cost and omnium apart highlighted. Shared run: 1.

4 ch
cost
6 ch
omnium

Grammar separator: cost vs omnium

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cost is anoun and omniumanadjective. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 77608, derived from the frequency rank of both members and their visual similarity.

cost is recorded at frequency rank #27,668, classified as anoun, pronounced […]. omnium is at rank #49,940, tagged as anadj, 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 77608, this pair ranks #256,996 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of cost vs omnium

Shared letters: o. Private to "cost": cst. Private to "omnium": imnu.

"cost" · 4 letters · shape CVCC  ·  "omnium" · 6 letters · shape VCCVVC

Known mistypes of this pair

  • costccost · cosst · costt · cots · csot · ocst
  • omniummonium · ominum · ommnium · omnimu · omniumm · omnnium · omnuim · onmium

Frequently Asked Questions

Is swapping "cost" for "omnium" ever safe?
No - they are not even the same part of speech. "cost" is a noun and "omnium" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "cost" or "omnium" show up more?
"cost" is the more common of the two: it sits at frequency rank #27,668 in our German list, against #49,940 for "omnium". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "cost" vs "omnium" is on the table, pick a follow-up below.

  • Full dictionary entry for "cost" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "omnium" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #256,996 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "cost" and "omnium" also get mixed up with nearby pairs, the highest-scored neighbour is "omnium 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 #256,996 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