Which to use
“on” is a pronoun and “or” is a noun - they look or sound alike but fill different roles in a sentence.
- #29
- “on” frequency rank
- #373
- “or” frequency rank
- 402
- confusion score
Side-by-Side Comparison
| Feature | on | or |
|---|---|---|
| Definition | Pronom de la troisième personne du singulier. — Note d’usage : S’utilise pour désigner une ou des personnes indéfinies, en remplacement d’une forme passive. | Élément chimique de symbole Au de numéro atomique 79 et de masse atomique 196,96 qui fait partie des métaux de transition. |
Where the spellings diverge
Shared letters are muted; the letters that actually set on and or apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
on and or 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 - n in “on” becomes r in “or” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 402, derived from the frequency rank of both members and their visual similarity.
on is recorded at frequency rank #29, classified as apron, pronounced \ɔ̃\. or is at rank #373, tagged as anoun, pronounced \ɔʁ\.
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 402, this pair ranks #439,703 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "on" and "or" be used interchangeably?
Remembering on vs or
The fastest way to pick the right one every time.
- Check the role first: if you need a pronoun, it's “on”; for a noun, it's “or”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “on” entry
- Browse more pairs most likely to be confused. Most confusable