Which to use
“ISBN” is a noun and “Isis” is a name - they look or sound alike but fill different roles in a sentence.
- #20,176
- “ISBN” frequency rank
- #16,658
- “Isis” frequency rank
- 36834
- confusion score
Side-by-Side Comparison
| Feature | ISBN | Isis |
|---|---|---|
| Definition | Numéro international qui permet d’identifier, de manière unique, chaque livre publié. | Nom grec d’Aset, grande déesse de la mythologie égyptienne, fille de Geb et de Nout (eux-mêmes enfants de Rê), épouse d’Ausarê (Osiris) et mère de Hor (Horus le jeune). |
Where the eye mixes ISBN and Isis
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses ISBN with Isis
These two trip readers on the page rather than in the ear: ISBN is \i.ɛs.be.ɛn\ while Isis is \i.zis\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 36834, derived from the frequency rank of both members and their visual similarity.
ISBN is recorded at frequency rank #20,176, classified as anoun, pronounced \i.ɛs.be.ɛn\. Isis is at rank #16,658, tagged as aname, pronounced \i.zis\.
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 36834, this pair ranks #266,816 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ISBN vs Isis
Shared letters: is. Private to "ISBN": bn. Private to "Isis": -.
"ISBN" · 4 letters · shape VCCC · "Isis" · 4 letters · shape VCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ISBN" for "Isis" ever safe?
Which is more common, "ISBN" or "Isis"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ISBN" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Isis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #266,816 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ISBN" and "Isis" also get mixed up with nearby pairs, the highest-scored neighbour is "ISBN vs isi". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #266,816 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.