acrevsarfWhich spelling fits?

Quick tell: acre is a noun, arf is an intj, so they fill different roles in a sentence.

Which to use

“acre” is a noun and “arf” is an intj - they look or sound alike but fill different roles in a sentence.

#28,433
“acre” frequency rank
#24,862
“arf” frequency rank
53295
confusion score

Side-by-Side Comparison

Feature acre arf
Definition Unité de surface égale à 0,4 hectare ou à 4046,9 mètres carrés, encore utilisée en agriculture et dans divers pays avec des valeurs différentes. Hé !

Where the eye mixes acre and arf

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
acre
3 ch
arf

Visual trap between acre and arf

These two trip readers on the page rather than in the ear: acre is \akʁ\ while arf is \aʁf\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs intj), which is usually the fastest check. Our composite confusion score for this pair is 53295, derived from the frequency rank of both members and their visual similarity.

acre is recorded at frequency rank #28,433, classified as anoun, pronounced \akʁ\. arf is at rank #24,862, tagged as anintj, pronounced \aʁf\.

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 53295, this pair ranks #141,720 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acre vs arf

Shared letters: ar. Private to "acre": ce. Private to "arf": f.

"acre" · 4 letters · shape VCCV  ·  "arf" · 3 letters · shape VCC

Known mistypes of this pair

  • acreaccre · acrre

Frequently Asked Questions

Do "acre" and "arf" mean the same thing in a sentence?
No - they are not even the same part of speech. "acre" is a noun and "arf" an intj, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "acre" vs "arf" - which ranks higher?
"arf" is the more common of the two: it sits at frequency rank #24,862 in our French list, against #28,433 for "acre". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "acre" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arf" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #141,720 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "acre" and "arf" also get mixed up with nearby pairs, the highest-scored neighbour is "acre vs aur". 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 #141,720 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list