ICAOvsIMAXWhat's the difference?

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

Which to use

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

#41,186
“ICAO” frequency rank
#26,123
“IMAX” frequency rank
67309
confusion score

Side-by-Side Comparison

Feature ICAO IMAX
Definition Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada. A 70mm motion picture film format and set of cinema projection standards.

Where the spellings diverge

Shared letters are muted; the letters that actually set ICAO and IMAX apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
ICAO
4 ch
IMAX

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ICAO is /ˌaɪˈkeɪˌoʊ/ while IMAX is /ˈaɪmæks/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 67309, 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/. IMAX is at rank #26,123, tagged as anoun, pronounced /ˈaɪmæks/.

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 67309, this pair ranks #63,938 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ICAO vs IMAX

Shared letters: ai. Private to "ICAO": co. Private to "IMAX": mx.

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

Known mistypes of this pair

  • ICAOiaco · iccao · icoa
  • IMAXiamx · imaxx · immax · imxa · miax

Frequency comparison

ICAO#41,186
IMAX#26,123

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ICAO" and "IMAX" be used interchangeably?
No - they are not even the same part of speech. "ICAO" is a name and "IMAX" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ICAO" or "IMAX"?
"IMAX" is the more common of the two: it sits at frequency rank #26,123 in our English list, against #41,186 for "ICAO". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering ICAO vs IMAX

The fastest way to pick the right one every time.

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

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

Source: FrequencyWords open word-frequency list