idavsIRDWhich spelling fits?

Quick tell: ida is a noun, IRD is a name, so they fill different roles in a sentence.

Which to use

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

#23,237
“ida” frequency rank
#48,611
“IRD” frequency rank
71848
confusion score

Side-by-Side Comparison

Feature ida IRD
Definition Aller, action d’aller. 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).

Letter map: ida vs IRD

Shared letters muted; letters that set ida and IRD apart highlighted. Shared run: 2. ida (VCV) and IRD (VCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ida
3 ch
IRD

Role in the sentence - ida and IRD

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ida 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 71848, derived from the frequency rank of both members and their visual similarity.

ida is recorded at frequency rank #23,237, classified as anoun, pronounced \ˈi.ða\. 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 71848, this pair ranks #46,061 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ida vs IRD

Shared letters: di. Private to "ida": a. Private to "IRD": r.

"ida" · 3 letters · shape VCV  ·  "IRD" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ida" for "IRD" ever safe?
No - they are not even the same part of speech. "ida" is a noun and "IRD" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ida" vs "IRD" - which ranks higher?
"ida" is the more common of the two: it sits at frequency rank #23,237 in our French list, against #48,611 for "IRD". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "ida" and "IRD".

  • Full dictionary entry for "ida" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "IRD" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #46,061 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ida" and "IRD" also get mixed up with nearby pairs, the highest-scored neighbour is "IRD vs isi". Nearby pair

Confusion rank #46,061 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list