A4vsazWhich spelling fits?

Quick tell: A4 is a symbol, az is a noun, so they fill different roles in a sentence.

Which to use

“A4” is a symbol and “az” is a noun - they look or sound alike but fill different roles in a sentence.

#18,920
“A4” frequency rank
#23,772
“az” frequency rank
42692
confusion score

Side-by-Side Comparison

Feature A4 az
Definition Format de papier de 210 mm × 297 mm. Première lettre de l’alphabet glagolitique, Ⰰ.

Letter map: A4 vs az

Shared letters muted; letters that set A4 and az apart highlighted. Shared run: 1.

2 ch
A4
2 ch
az

Role in the sentence - A4 and az

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: A4 is asymbol and azanoun. On the page they differ by a single letter - 4 in “A4” becomes z in “az”. Our composite confusion score for this pair is 42692, derived from the frequency rank of both members and their visual similarity.

A4 is recorded at frequency rank #18,920, classified as asymbol. az is at rank #23,772, tagged as anoun, pronounced \az\.

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 42692, this pair ranks #223,657 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of A4 vs az

Shared letters: a. Private to "A4": -. Private to "az": z.

"A4" · 1 letters · shape V  ·  "az" · 2 letters · shape VC

Frequently Asked Questions

Do "A4" and "az" mean the same thing in a sentence?
No - they are not even the same part of speech. "A4" is a symbol and "az" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "A4" vs "az" - which ranks higher?
"A4" is the more common of the two: it sits at frequency rank #18,920 in our French list, against #23,772 for "az". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "A4" and "az". Here's where to go from here.

  • Full dictionary entry for "A4" 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 #223,657 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "A4" and "az" also get mixed up with nearby pairs, the highest-scored neighbour is "aur vs az". Nearby pair

Confusion rank #223,657 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