ochvsostWhat's the difference?

Quick tell: och is a conjunction, ost is a noun, so they fill different roles in a sentence.

Which to use

“och” is a conjunction and “ost” is a noun - they look or sound alike but fill different roles in a sentence.

#49,829
“och” frequency rank
#19,617
“ost” frequency rank
69446
confusion score

Side-by-Side Comparison

Feature och ost
Definition Et. ou Armée au Moyen Âge.

Letter map: och vs ost

Shared letters muted; letters that set och and ost apart highlighted. Shared run: 1. och and ost follow the identical consonant-vowel pattern (VCC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
och
3 ch
ost

Role in the sentence - och and ost

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: och is aconjunction and ostanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 69446, derived from the frequency rank of both members and their visual similarity.

och is recorded at frequency rank #49,829, classified as aconj. 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 69446, this pair ranks #55,074 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of och vs ost

Shared letters: o. Private to "och": ch. Private to "ost": st.

"och" · 3 letters · shape VCC  ·  "ost" · 3 letters · shape VCC

Frequently Asked Questions

Can "och" and "ost" be used interchangeably?
No - they are not even the same part of speech. "och" is a conjunction and "ost" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "och" or "ost" show up more?
"ost" is the more common of the two: it sits at frequency rank #19,617 in our French list, against #49,829 for "och". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "och" and "ost".

  • Full dictionary entry for "och" 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 #55,074 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "och" and "ost" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs oim". Nearby pair

Confusion rank #55,074 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