ICAOvsIlanWhat's the difference?

Which to use

“ICAO” and “Ilan” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#41,186
“ICAO” frequency rank
#49,996
“Ilan” frequency rank
91182
confusion score

Side-by-Side Comparison

Feature ICAO Ilan
Definition Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada. A male given name from Hebrew.

Letter map: ICAO vs Ilan

Shared letters muted; letters that set ICAO and Ilan apart highlighted. Shared run: 2. ICAO (VCVV) and Ilan (VCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
ICAO
4 ch
Ilan

Corpus notes: ICAO and Ilan

ICAO and Ilan are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 91182, derived from the frequency rank of both members and their visual similarity.

ICAO is recorded at frequency rank #41,186, classified as aname, pronounced /ˌaɪˈkeɪˌoʊ/. Ilan is at rank #49,996, 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 91182, this pair ranks #3,498 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ICAO vs Ilan

Shared letters: ai. Private to "ICAO": co. Private to "Ilan": ln.

"ICAO" · 4 letters · shape VCVV  ·  "Ilan" · 4 letters · shape VCVC

Known mistypes of this pair

  • ICAO ← iaco · iccao · icoa
  • Ilan ← ialn · ilann · illan

Frequently Asked Questions

Is swapping "ICAO" for "Ilan" ever safe?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "ICAO" or "Ilan" show up more?
"ICAO" is the more common of the two: it sits at frequency rank #41,186 in our English list, against #49,996 for "Ilan". 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 "ICAO" and "Ilan".

  • Full dictionary entry for "ICAO" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ilan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,498 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ICAO" and "Ilan" also get mixed up with nearby pairs, the highest-scored neighbour is "Ilan vs Irfan". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #3,498 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list