Which to use
“acre” is a noun and “AR” is an adjective - they look or sound alike but fill different roles in a sentence.
- #7,877
- “acre” frequency rank
- #6,436
- “AR” frequency rank
- 14313
- confusion score
Side-by-Side Comparison
| Feature | acre | AR |
|---|---|---|
| Definition | An English unit of land area (symbol: a. or ac.) originally denoting a day's ploughing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86 square metres. | Initialism of autoregressive. |
Letter map: acre vs AR
Shared letters muted; letters that set acre and AR apart highlighted. Shared run: 2.
Role in the sentence - acre and AR
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: acre is anoun and ARanadjective. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 14313, derived from the frequency rank of both members and their visual similarity.
acre is recorded at frequency rank #7,877, classified as anoun, pronounced /ˈeɪ.kə/. AR is at rank #6,436, tagged as anadj.
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 14313, this pair ranks #470,794 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of acre vs AR
Shared letters: ar. Private to "acre": ce. Private to "AR": -.
"acre" · 4 letters · shape VCCV · "AR" · 2 letters · shape VC
Known mistypes of this pair
- acre ← accre · acrre
Frequently Asked Questions
Is swapping "acre" for "AR" ever safe?
Which is more common, "acre" or "AR"?
After this comparison
You've compared "acre" and "AR". Here's where to go from here.
- Full dictionary entry for "acre" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "AR" - compare definitions side by side with the headword page. Word entry
- This pair ranks #470,794 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "acre" and "AR" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs AR". 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 #470,794 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.