Which to use
“idées” is a noun and “idem” is an adverb - they look or sound alike but fill different roles in a sentence.
- #804
- “idées” frequency rank
- #6,513
- “idem” frequency rank
- 7317
- confusion score
Side-by-Side Comparison
| Feature | idées | idem |
|---|---|---|
| Definition | Pluriel de idée. | De même, pareillement. On l’emploie pour éviter de répéter ce qui vient d’être dit ou écrit. |
Where the spellings diverge
Shared letters are muted; the letters that actually set idées and idem apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: idées is \i.de\ while idem is \i.dɛm\. 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 (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 7317, derived from the frequency rank of both members and their visual similarity.
idées is recorded at frequency rank #804, classified as anoun, pronounced \i.de\. idem is at rank #6,513, tagged as anadv, pronounced \i.dɛm\.
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 7317, this pair ranks #423,528 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of idées vs idem
Shared letters: dei. Private to "idées": sé. Private to "idem": m.
"idées" · 5 letters · shape VCVVC · "idem" · 4 letters · shape VCVC
Known mistypes of this pair
- idem ← diem · iddem · idemm · idme · iedm
Frequency comparison
Frequently Asked Questions
Can "idées" and "idem" be used interchangeably?
Which is more common, "idées" or "idem"?
Remembering idées vs idem
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “idées”; for an adverb, it's “idem”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “idées” entry
- Browse more pairs most likely to be confused. Most confusable