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icao

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

4 characters

Language

English

word origin

Source

Wiktionary

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Detailed reference entry for the English word "icao", 4-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "icao" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "icao" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

ICAO is aEnglishname. It means: Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada. Pronounced /ˌaɪˈkeɪˌoʊ/. Often confused with io and ice.

Key facts for ICAO
PropertyValue
HeadwordICAO
LanguageEnglish
Part of speechName
IPA/ˌaɪˈkeɪˌoʊ/
Letters4
Frequency rank#41,186
Misspellings tracked3
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of ICAO in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for ICAO is 4 letters long, classified as aname, and transcribed in the International Phonetic Alphabet as /ˌaɪˈkeɪˌoʊ/. Corpus data places it at rank #41,186 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.The dominant gloss from Wiktionary reads: "Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.".

Our Hunspell-derived misspelling index lists 3 documented wrong-spelling variants for ICAO, with forms such as "iaco", "iccao", and "icoa". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 20 confusable-pair relationships, "io", "ice", "IRA", and more, where similar look or sound leads writers to substitute one word for another in context.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is ICAO, spelled I-C-A-O, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.

Common misspellings

Also misspelled as: iaco,iccao,icoa

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for ICAO

Misspelling Variants of "ICAO"

iaco4iccao5icoa4
Misspelling Variants of "ICAO"

Frequency rank: #41,186 in English

Frequently Asked Questions

How do you spell "ICAO"?
"ICAO" is spelled I-C-A-O. The IPA pronunciation is /ˌaɪˈkeɪˌoʊ/.
What does "ICAO" mean?
As a name, "ICAO" means: Acronym of International Civil Aviation Organization, a United Nations agency headquartered in Montreal, Canada.
What words are commonly confused with "ICAO"?
"ICAO" is commonly confused with "io", "ice", "IRA". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ICAO"?
The IPA (International Phonetic Alphabet) transcription for "ICAO" is /ˌaɪˈkeɪˌoʊ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "ICAO" come from?
"ICAO" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Nearby English words

Other entries that begin with the letter I in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.