Which to use
“ose” and “ost” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,950
- “ose” frequency rank
- #19,617
- “ost” frequency rank
- 23567
- confusion score
Side-by-Side Comparison
| Feature | ose | ost |
|---|---|---|
| Definition | Nom générique donné aux substances organiques non hydrolysables possédant un groupe réducteur, aldéhyde ou cétone, et plus de deux fonctions alcooliques. On les divise en trioses, tétroses, pentoses, hexoses et heptoses… suivant qu’ils renferment 3, 4, 5, 6 ou 7… atomes de carbone. On les distingue aussi en aldoses et cétoses suivant qu’ils ont des fonctions aldéhydes ou cétoniques. | ou Armée au Moyen Âge. |
Where the spellings diverge
Shared letters are muted; the letters that actually set ose and ost apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
ose and ost form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - e in “ose” becomes t in “ost” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 23567, derived from the frequency rank of both members and their visual similarity.
ose is recorded at frequency rank #3,950, classified as anoun, pronounced \oz\. 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 23567, this pair ranks #351,750 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "ose" and "ost" be used interchangeably?
Remembering ose vs ost
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “ose” entry
- Browse more pairs most likely to be confused. Most confusable