OSCEvsostWhich spelling fits?

Which to use

“OSCE” and “ost” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#46,934
“OSCE” frequency rank
#19,617
“ost” frequency rank
66551
confusion score

Side-by-Side Comparison

Feature OSCE ost
Definition Organisation de coopération régionale. ou Armée au Moyen Âge.

Where the eye mixes OSCE and ost

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
OSCE
3 ch
ost

Why the eye confuses OSCE with ost

A purely visual mix-up. OSCE (\o.es.se.ə\) 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 differ by 1 letter(s) in length. Our composite confusion score for this pair is 66551, derived from the frequency rank of both members and their visual similarity.

OSCE is recorded at frequency rank #46,934, classified as anoun, pronounced \o.es.se.ə\. ost is at rank #19,617, 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 66551, this pair ranks #67,312 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of OSCE vs ost

Shared letters: os. Private to "OSCE": ce. Private to "ost": t.

"OSCE" · 4 letters · shape VCCV  ·  "ost" · 3 letters · shape VCC

Known mistypes of this pair

  • OSCEocse · oscce · osec · ossce · soce

Frequently Asked Questions

Is swapping "OSCE" for "ost" ever safe?
No. They are said differently (\o.es.se.ə\ versus \ɔst\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "OSCE" or "ost"?
"ost" is the more common of the two: it sits at frequency rank #19,617 in our French list, against #46,934 for "OSCE". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "OSCE" 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 #67,312 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "OSCE" and "ost" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs OSCE". 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 #67,312 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list