Which to use
“ao” and “arc” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,538
- “ao” frequency rank
- #5,005
- “arc” frequency rank
- 22543
- confusion score
Side-by-Side Comparison
| Feature | ao | arc |
|---|---|---|
| Definition | grue ("blue or green", considered one color) | That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon. |
Letter map: ao vs arc
Shared letters muted; letters that set ao and arc apart highlighted. Shared run: 1.
Spelling & dictionary notes on ao vs arc
ao and arc 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 22543, derived from the frequency rank of both members and their visual similarity.
ao is recorded at frequency rank #17,538, classified as anoun. arc is at rank #5,005, tagged as anoun, pronounced /ɑːk/.
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 22543, this pair ranks #415,795 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ao vs arc
Shared letters: a. Private to "ao": o. Private to "arc": cr.
"ao" · 2 letters · shape VV · "arc" · 3 letters · shape VCC
Frequently Asked Questions
Can "ao" and "arc" be used interchangeably?
In ordinary English text, does "ao" or "arc" show up more?
After this comparison
You've compared "ao" and "arc". Here's where to go from here.
- Full dictionary entry for "ao" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "arc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #415,795 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ao" and "arc" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs ao". Nearby pair
Confusion rank #415,795 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.