ICAO vs ich, What's the Difference?

Which to use

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

#41,186
“ICAO” frequency rank: #21,826
“ich” frequency rank: 63012
confusion score

Side-by-Side Comparison

Feature	ICAO	ich
Definition	Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.	I.

Where the spellings diverge

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

4 ch

ICAO

3 ch

ich

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ICAO is /ˌaɪˈkeɪˌoʊ/ while ich is /iːt͡ʃ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 63012, 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/. ich is at rank #21,826, tagged as apron, pronounced /iːt͡ʃ/.

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 63012, this pair ranks #85,368 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of ICAO vs ich

Shared letters: ci. Private to "ICAO": ao. Private to "ich": h.

"ICAO" · 4 letters · shape VCVV · "ich" · 3 letters · shape VCC

Known mistypes of this pair

ICAO ← iaco · iccao · icoa

Frequency comparison

ICAO#41,186

ich#21,826

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ICAO" and "ich" be used interchangeably?

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

Which is more common, "ICAO" or "ich"?

"ich" is the more common of the two: it sits at frequency rank #21,826 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 ich

The fastest way to pick the right one every time.

Check the role first: if you need a name, it's “ICAO”; for a pronoun, it's “ich”.
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