a'svsARNWhich spelling fits?

Which to use

“a's” and “ARN” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#15,090
“a's” frequency rank
#46,314
“ARN” frequency rank
61404
confusion score

Side-by-Side Comparison

Feature a's ARN
Definition plural of the letter a Initialism of Amazon resource name.

Letter map: a's vs ARN

Shared letters muted; letters that set a's and ARN apart highlighted. Shared run: 1.

3 ch
a's
3 ch
ARN

Pair insight - a's / ARN

a's and ARN 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 61404, derived from the frequency rank of both members and their visual similarity.

a's is recorded at frequency rank #15,090, classified as anoun, pronounced /ˈeɪz/. ARN is at rank #46,314, 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 61404, this pair ranks #94,480 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of a's vs ARN

Shared letters: a. Private to "a's": s. Private to "ARN": nr.

"a's" · 2 letters · shape VC  ·  "ARN" · 3 letters · shape VCC

Frequently Asked Questions

Do "a's" and "ARN" mean the same thing in a sentence?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "a's" vs "ARN" - which ranks higher?
"a's" is the more common of the two: it sits at frequency rank #15,090 in our English list, against #46,314 for "ARN". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "a's" and "ARN". Here's where to go from here.

  • Full dictionary entry for "a's" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ARN" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #94,480 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "a's" and "ARN" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs ARN". Nearby pair

Confusion rank #94,480 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