Oahu

/oʊˈɑhu/

//oʊˈɑhu// name

By · According to Wiktionary data (CC BY-SA) ·

"oahu" is a 4-letter English headword indexed on PlainSpell.

The verdict

“Oahu” sits in 19 confusable pairs (corpus #29,397) as a proper noun. The look-alike neighbours are the real trap.

#29,397
frequency rank, English
1,431
“O” headwords
4
tracked misspellings
19
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The third-largest island of Hawaii, included in the City and County of Honolulu.

Corpus desk

Index EN-oahu · Oahu · English

Oahu · rank #29,397 · 4 variants · 19 confusables

  • FREQ-MID #29,397
  • LEN-MID 4 letters
  • VOW-3 3 vowels
  • CONFUS-HIGH 19 pairs
  • VAR-LOW 4 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH nous

Nearest frequency peer: nous (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbours of confusable “Oahu”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “Oahu” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

Oahu vs OH
25% similar
Oahu vs ou
25% similar
Oahu vs oak
25% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for Oahu
PropertyValue
HeadwordOahu
LanguageEnglish
Part of speechProper noun
IPA/oʊˈɑhu/
Letters4
Frequency rank#29,397
Misspellings tracked4
Confusable pairs19
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “Oahu”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).Oahulands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “nous” (#29,396), “normalization” (#29,395), “Oceania” (#29,399). Among 1,431 “O” headwords, “Oahu” is #29,397. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for Oahu is neighbouring look-alikes ("OH", "ou", …), not just typos; it is aproper noun pronounced /oʊˈɑhu/. Frequency #29,397 among 1,431 “O” headwords. Gloss: "The third-largest island of Hawaii, included in the City and County of Honolulu.".

Our generated misspelling index lists 4 likely wrong-spelling variants for Oahu, with forms such as "aohu", "oahhu", and "oauh". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 19 confusable-pair relationships, "OH", "ou", "oak", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Hawaiian Oʻahu, probably a corruption of Hawaiian o + Hawaiian ahu (cognate with Rapa Nui ahu), thus [place] of an altar or platform. The correct English form is Oahu, spelled O-A-H-U.

Definition

  1. 1
    The third-largest island of Hawaii, included in the City and County of Honolulu.

Etymology

From Hawaiian Oʻahu, probably a corruption of Hawaiian o + Hawaiian ahu (cognate with Rapa Nui ahu), thus [place] of an altar or platform.

Common misspellings

Also misspelled as:

  • aohu
  • oahhu
  • oauh
  • ohau

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Oahu - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

aohu2oahhu1oauh2ohau2
Edit distance from "Oahu"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Oahu"?
"Oahu" is spelled O-A-H-U. The IPA pronunciation is /oʊˈɑhu/.
What does "Oahu" mean?
As a proper noun, "Oahu" means: The third-largest island of Hawaii, included in the City and County of Honolulu.
What words are commonly confused with "Oahu"?
"Oahu" is commonly confused with "OH", "ou", "oak". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "Oahu"?
The IPA (International Phonetic Alphabet) transcription for "Oahu" is /oʊˈɑhu/. 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 "Oahu"?
From Hawaiian Oʻahu, probably a corruption of Hawaiian o + Hawaiian ahu (cognate with Rapa Nui ahu), thus [place] of an altar or platform. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "Oahu", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

nous#29,396onus#29,402onyx#29,403mush#29,390

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

Source: FrequencyWords open word-frequency list