Which to use
“ait” and “auth” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #38,716
- “ait” frequency rank
- #30,696
- “auth” frequency rank
- 69412
- confusion score
Side-by-Side Comparison
| Feature | ait | auth |
|---|---|---|
| Definition | An island in a river, especially the River Thames in England. | Abbreviation of authentication. |
Letter map: ait vs auth
Shared letters muted; letters that set ait and auth apart highlighted. Shared run: 2.
Pair insight - ait / auth
ait and auth are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 69412, derived from the frequency rank of both members and their visual similarity.
ait is recorded at frequency rank #38,716, classified as anoun, pronounced /eɪt/. auth is at rank #30,696, 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 69412, this pair ranks #54,666 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of ait vs auth
Shared letters: at. Private to "ait": i. Private to "auth": hu.
"ait" · 3 letters · shape VVC · "auth" · 4 letters · shape VVCC
Known mistypes of this pair
- auth ← atuh · auht · authh · autth
Frequently Asked Questions
Do "ait" and "auth" mean the same thing in a sentence?
Frequency check: "ait" vs "auth" - which ranks higher?
What to do next
Pair "ait" vs "auth" is on the table, pick a follow-up below.
- Full dictionary entry for "ait" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "auth" - compare definitions side by side with the headword page. Word entry
- This pair ranks #54,666 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ait" and "auth" also get mixed up with nearby pairs, the highest-scored neighbour is "ait vs Asta". 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 #54,666 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.