OpivsOstWhat's the difference?

Which to use

“Opi” and “Ost” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#44,834
“Opi” frequency rank
#2,356
“Ost” frequency rank
47190
confusion score

Side-by-Side Comparison

Feature Opi Ost
Definition Kosewort für Opa Kurzform für die Haupthimmelsrichtung Osten in der Navigation, Seefahrt

Where the eye mixes Opi and Ost

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
Opi
3 ch
Ost

Why the eye confuses Opi with Ost

A purely visual mix-up. Opi ([ˈoːpi]) and Ost ([ɔst]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47190, derived from the frequency rank of both members and their visual similarity.

Opi is recorded at frequency rank #44,834, classified as anoun, pronounced [ˈoːpi]. Ost is at rank #2,356, tagged as anoun, pronounced [ɔst].

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 47190, this pair ranks #1,293,127 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Opi vs Ost

Shared letters: o. Private to "Opi": ip. Private to "Ost": st.

"Opi" · 3 letters · shape VCV  ·  "Ost" · 3 letters · shape VCC

Frequently Asked Questions

Do "Opi" and "Ost" mean the same thing in a sentence?
No. They are said differently ([ˈoːpi] versus [ɔst]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary German text, does "Opi" or "Ost" show up more?
"Ost" is the more common of the two: it sits at frequency rank #2,356 in our German list, against #44,834 for "Opi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "Opi" and "Ost" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "Opi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,293,127 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Opi" and "Ost" also get mixed up with nearby pairs, the highest-scored neighbour is "OGH vs Opi". Nearby pair

Confusion rank #1,293,127 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