assvsAZTell them apart

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

Which to use

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

#1,065
“ass” frequency rank
#11,504
“AZ” frequency rank
12569
confusion score

Side-by-Side Comparison

Feature ass AZ
Definition Any of several species of horse-like animals, especially Equus asinus, the domesticated of which are used as beasts of burden. Abbreviation of Arizona: a state of the United States.

Letter map: ass vs AZ

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

3 ch
ass
2 ch
AZ

Grammar separator: ass vs AZ

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ass is anoun and AZaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 12569, derived from the frequency rank of both members and their visual similarity.

ass is recorded at frequency rank #1,065, classified as anoun, pronounced /æs/. 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 12569, this pair ranks #480,792 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ass vs AZ

Shared letters: a. Private to "ass": s. Private to "AZ": z.

"ass" · 3 letters · shape VCC  ·  "AZ" · 2 letters · shape VC

Frequently Asked Questions

Can "ass" and "AZ" be used interchangeably?
No - they are not even the same part of speech. "ass" is a noun and "AZ" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ass" vs "AZ" - which ranks higher?
"ass" is the more common of the two: it sits at frequency rank #1,065 in our English list, against #11,504 for "AZ". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Done with this confusable. These links stay specific to "ass" and "AZ".

  • Full dictionary entry for "ass" 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 #480,792 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ass" and "AZ" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs AZ". Nearby pair

Confusion rank #480,792 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