aesvsAZTell them apart

Quick tell: aes is a noun, AZ is a name, so they fill different roles in a sentence.

Which to use

“aes” is a noun and “AZ” is a name - they look or sound alike but fill different roles in a sentence.

#28,806
“aes” frequency rank
#11,504
“AZ” frequency rank
40310
confusion score

Side-by-Side Comparison

Feature aes AZ
Definition plural of a, the name of the letter A. Abbreviation of Arizona: a state of the United States.

Letter map: aes vs AZ

Shared letters muted; letters that set aes and AZ apart highlighted. Shared run: 1.

3 ch
aes
2 ch
AZ

Role in the sentence - aes and AZ

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: aes is anoun and AZaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 40310, derived from the frequency rank of both members and their visual similarity.

aes is recorded at frequency rank #28,806, classified as anoun, pronounced /ˈeɪz/. AZ is at rank #11,504, tagged as aname.

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 40310, this pair ranks #268,751 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aes vs AZ

Shared letters: a. Private to "aes": es. Private to "AZ": z.

"aes" · 3 letters · shape VVC  ·  "AZ" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "aes" for "AZ" ever safe?
No - they are not even the same part of speech. "aes" is a noun and "AZ" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "aes" or "AZ"?
"AZ" is the more common of the two: it sits at frequency rank #11,504 in our English list, against #28,806 for "aes". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "aes" and "AZ". Here's where to go from here.

  • Full dictionary entry for "aes" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "AZ" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #268,751 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "aes" and "AZ" also get mixed up with nearby pairs, the highest-scored neighbour is "aes vs amb". Nearby pair

Confusion rank #268,751 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