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oak

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

Letters

3 characters

Language

English

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Detailed reference entry for the English word "oak", 3-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 "oak" 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 "oak" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

oak is aEnglishnoun. It means: A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus. Pronounced /əʊk/. It ranks #5,343 in English word frequency. Often confused with of and on.

Key facts for oak
PropertyValue
Headwordoak
LanguageEnglish
Part of speechNoun
IPA/əʊk/
Letters3
Frequency rank#5,343
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency rank visualization

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

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for oak is 3 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /əʊk/. Corpus data places it at rank #5,343 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 11 distinct senses for this headword, so context determines which meaning a reader should apply.

No frequent misspelling variants are recorded for oak in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It also participates in 20 confusable-pair relationships, "of", "on", "or", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Inherited from Middle English ake, hok, oek, ok, oke, from Old English aac, āc, ǣċ, from Proto-West Germanic *aik, from Proto-Germanic *aiks (“oak”), from Proto-Indo-European *h₂eyǵ- (“oak”). Cognates From Proto-Germanic: Scots aik, ake, yik (“oak”), North … Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is oak, spelled O-A-K, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.
  2. 2
    The wood of the oak.
  3. 3
    A rich brown color, like that of oak wood.
  4. 4
    Any tree of the genus Quercus, in family Fagaceae.
  5. 5
    Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.
  6. 6
    Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.
  7. 7
    Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.
  8. 8
    Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.
  9. 9
    Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.
  10. 10
    The outer (lockable) door of a set of rooms in a college or similar institution. (Often in the phrase sport one's oak.)
  11. 11
    The flavor of oak.

Etymology

Inherited from Middle English ake, hok, oek, ok, oke, from Old English aac, āc, ǣċ, from Proto-West Germanic *aik, from Proto-Germanic *aiks (“oak”), from Proto-Indo-European *h₂eyǵ- (“oak”). Cognates From Proto-Germanic: Scots aik, ake, yik (“oak”), North Frisian iake, iik (“oak”), Saterland Frisian Eeke (“oak”), West Frisian iik (“oak”), Cimbrian aicha, oach (“oak”), Dutch eik (“oak”), German Eiche (“oak”), Luxembourgish Eech (“oak”), Vilamovian aach, aeh́, ǡh́ (“oak”), Danish eg (“oak”), Faroese, Icelandic, and Norwegian Nynorsk eik (“oak”), Norwegian Bokmål eik, ek (“oak”), Swedish ek (“oak”). From Proto-Indo-European: Latin aesculus (“Italian oak”), Ancient Greek αἰγίλωψ (aigílōps, “Turkey oak”), Albanian enjë (“English yew; stinking juniper”), Latvian ozols (“oak”), Lithuanian ąžuolas (“oak”).

This word in other languages

Frequency rank: #5,343 in English

Frequently Asked Questions

How do you spell "oak"?
"oak" is spelled O-A-K. The IPA pronunciation is /əʊk/.
What does "oak" mean?
As a noun, "oak" means: A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.
What words are commonly confused with "oak"?
"oak" is commonly confused with "of", "on", "or". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "oak"?
The IPA (International Phonetic Alphabet) transcription for "oak" is /əʊk/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "oak"?
Inherited from Middle English ake, hok, oek, ok, oke, from Old English aac, āc, ǣċ, from Proto-West Germanic *aik, from Proto-Germanic *aiks (“oak”), from Proto-Indo-European *h₂eyǵ- (“oak”). Cognates From Proto-Germanic: Scots aik, ake, yik (“oak... See the full etymology section above for more details.
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 O 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.