Which to use
“ion” is a noun and “IRD” is a name - they look or sound alike but fill different roles in a sentence.
- #14,064
- “ion” frequency rank
- #48,611
- “IRD” frequency rank
- 62675
- confusion score
Side-by-Side Comparison
| Feature | ion | IRD |
|---|---|---|
| Definition | Atome ou molécule ayant perdu ou gagné des électrons sur sa couche externe. | Établissement public à caractère scientifique et technologique (EPST) français, sous la tutelle des ministères chargés de la Recherche et de la Coopération, remplaçant l’Office de la recherche scientifique et technique outre-mer (ORSTOM). |
Where the spellings diverge
Shared letters are muted; the letters that actually set ion and IRD apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ion is anoun and IRDaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 62675, derived from the frequency rank of both members and their visual similarity.
ion is recorded at frequency rank #14,064, classified as anoun, pronounced \jɔ̃\. IRD is at rank #48,611, tagged as aname.
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 62675, this pair ranks #85,914 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of ion vs IRD
Shared letters: i. Private to "ion": no. Private to "IRD": dr.
"ion" · 3 letters · shape VVC · "IRD" · 3 letters · shape VCC
Frequency comparison
Frequently Asked Questions
Can "ion" and "IRD" be used interchangeably?
Which is more common, "ion" or "IRD"?
Remembering ion vs IRD
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “ion”; for a name, it's “IRD”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “ion” entry
- Browse more pairs most likely to be confused. Most confusable