idées vs ides, What's the Difference?

Which to use

“idées” and “ides” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#804
“idées” frequency rank: #42,389
“ides” frequency rank: 43193
confusion score

Side-by-Side Comparison

Feature	idées	ides
Definition	Pluriel de idée.	Le quinzième jour des mois de mars, de mai, de juillet et d’octobre dans le calendrier des anciens Romains, et le treizième des autres mois.

Where the spellings diverge

Shared letters are muted; the letters that actually set idées and ides apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

5 ch

idées

4 ch

ides

Spelling & Dictionary Insight

A purely visual mix-up. idées (\i.de\) and ides (\id\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43193, 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\. ides is at rank #42,389, tagged as anoun, pronounced \id\.

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 43193, this pair ranks #219,943 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of idées vs ides

Shared letters: deis. Private to "idées": é. Private to "ides": -.

"idées" · 5 letters · shape VCVVC · "ides" · 4 letters · shape VCVC

Known mistypes of this pair

ides ← iddes · idess · ieds

Frequency comparison

idées#804

ides#42,389

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "idées" and "ides" be used interchangeably?

No. They are said differently (\i.de\ versus \id\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "idées" or "ides"?

"idées" is the more common of the two: it sits at frequency rank #804 in our French list, against #42,389 for "ides". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering idées vs ides

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
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