Which to use
“obs” is a verb and “ose” is a noun - they look or sound alike but fill different roles in a sentence.
- #13,851
- “obs” frequency rank
- #3,950
- “ose” frequency rank
- 17801
- confusion score
Side-by-Side Comparison
| Feature | obs | ose |
|---|---|---|
| Definition | Deuxième personne du singulier de l’impératif présent de obsen. | 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. |
Where the spellings diverge
Shared letters are muted; the letters that actually set obs and ose apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
obs and ose form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 17801, derived from the frequency rank of both members and their visual similarity.
obs is recorded at frequency rank #13,851, classified as averb, pronounced \ɔps\. ose is at rank #3,950, tagged as anoun, pronounced \oz\.
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 17801, this pair ranks #381,436 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "obs" and "ose" be used interchangeably?
Remembering obs vs ose
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “obs”; for a noun, it's “ose”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “obs” entry
- Browse more pairs most likely to be confused. Most confusable