ils vs IRD, What's the Difference?

Which to use

“ils” is a pronoun and “IRD” is a name - they look or sound alike but fill different roles in a sentence.

#54
“ils” frequency rank: #48,611
“IRD” frequency rank: 48665
confusion score

Side-by-Side Comparison

Feature	ils	IRD
Definition	Pronom clitique de la troisième personne du pluriel sujet, quand on parle d’un groupe d’hommes et de femmes ou de choses grammaticalement masculines et féminines.	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 ils and IRD apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch

ils

3 ch

IRD

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ils is apronoun and IRDaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48665, derived from the frequency rank of both members and their visual similarity.

ils is recorded at frequency rank #54, classified as apron, pronounced \il\. 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 48665, this pair ranks #177,014 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ils vs IRD

Shared letters: i. Private to "ils": ls. Private to "IRD": dr.

"ils" · 3 letters · shape VCC · "IRD" · 3 letters · shape VCC

Frequency comparison

ils#54

IRD#48,611

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ils" and "IRD" be used interchangeably?

No - they are not even the same part of speech. "ils" is a pronoun and "IRD" a name, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "ils" or "IRD"?

"ils" is the more common of the two: it sits at frequency rank #54 in our French list, against #48,611 for "IRD". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering ils vs IRD

The fastest way to pick the right one every time.

Check the role first: if you need a pronoun, it's “ils”; for a name, it's “IRD”.
See each word in full, definition, IPA, etymology and its other confusables. Full “ils” entry
Browse more pairs most likely to be confused. Most confusable