Which to use
“af” is a preposition and “aru” is a noun - they look or sound alike but fill different roles in a sentence.
- #14,405
- “af” frequency rank
- #48,924
- “aru” frequency rank
- 63329
- confusion score
Side-by-Side Comparison
| Feature | af | aru |
|---|---|---|
| Definition | De. Note d’usage : la préposition est suivie du datif. | Vagin. |
Where the eye mixes af and aru
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: af vs aru
These two trip readers on the page rather than in the ear: af is \aːv\ while aru is \aru\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 63329, derived from the frequency rank of both members and their visual similarity.
af is recorded at frequency rank #14,405, classified as aprep, pronounced \aːv\. aru is at rank #48,924, tagged as anoun, pronounced \aru\.
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 63329, this pair ranks #82,497 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of af vs aru
Shared letters: a. Private to "af": f. Private to "aru": ru.
"af" · 2 letters · shape VC · "aru" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "af" for "aru" ever safe?
Which is more common, "af" or "aru"?
Useful next steps
Eye-level mix-up between "af" and "aru" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "af" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aru" - compare definitions side by side with the headword page. Word entry
- This pair ranks #82,497 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "af" and "aru" also get mixed up with nearby pairs, the highest-scored neighbour is "aru vs aur". Nearby pair
Confusion rank #82,497 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.