OahuvsothConfusable pair

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

Which to use

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

#29,397
“Oahu” frequency rank
#39,944
“oth” frequency rank
69341
confusion score

Side-by-Side Comparison

Feature Oahu oth
Definition The third-largest island of Hawaii, included in the City and County of Honolulu. Obsolete spelling of oath.

Letter map: Oahu vs oth

Shared letters muted; letters that set Oahu and oth apart highlighted. Shared run: 2. Oahu runs 4 letters (VVCV) against oth's 3 (VCC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
Oahu
3 ch
oth

Role in the sentence - Oahu and oth

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Oahu is aname and othanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 69341, derived from the frequency rank of both members and their visual similarity.

Oahu is recorded at frequency rank #29,397, classified as aname, pronounced /oʊˈɑhu/. oth is at rank #39,944, tagged as anoun.

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 69341, this pair ranks #54,993 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Oahu vs oth

Shared letters: ho. Private to "Oahu": au. Private to "oth": t.

"Oahu" · 4 letters · shape VVCV  ·  "oth" · 3 letters · shape VCC

Known mistypes of this pair

  • Oahu ← aohu · oahhu · oauh · ohau

Frequently Asked Questions

Can "Oahu" and "oth" be used interchangeably?
No - they are not even the same part of speech. "Oahu" is a name and "oth" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Oahu" vs "oth" - which ranks higher?
"Oahu" is the more common of the two: it sits at frequency rank #29,397 in our English list, against #39,944 for "oth". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "Oahu" vs "oth" is on the table, pick a follow-up below.

  • Full dictionary entry for "Oahu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "oth" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #54,993 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Oahu" and "oth" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs oth". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #54,993 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list