ongvsostWhat's the difference?

Which to use

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

#6,860
“ong” frequency rank
#19,617
“ost” frequency rank
26477
confusion score

Side-by-Side Comparison

Feature ong ost
Definition Abeille (classificateur con). ou Armée au Moyen Âge.

Where the eye mixes ong and ost

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

3 ch
ong
3 ch
ost

Look-alike desk: ong vs ost

A purely visual mix-up. ong (\ɔŋ˦\) 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 26477, derived from the frequency rank of both members and their visual similarity.

ong is recorded at frequency rank #6,860, classified as anoun, pronounced \ɔŋ˦\. 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 26477, this pair ranks #334,770 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ong vs ost

Shared letters: o. Private to "ong": gn. Private to "ost": st.

"ong" · 3 letters · shape VCC  ·  "ost" · 3 letters · shape VCC

Frequently Asked Questions

Do "ong" and "ost" mean the same thing in a sentence?
No. They are said differently (\ɔŋ˦\ versus \ɔst\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "ong" or "ost" show up more?
"ong" is the more common of the two: it sits at frequency rank #6,860 in our French list, against #19,617 for "ost". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "ong" 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 #334,770 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ong" and "ost" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs ost". Nearby pair

Confusion rank #334,770 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