A4vsaurWhich spelling fits?

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

Which to use

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

#18,920
“A4” frequency rank
#49,504
“aur” frequency rank
68424
confusion score

Side-by-Side Comparison

Feature A4 aur
Definition Format de papier de 210 mm × 297 mm. Or. Élément chimique de numéro atomique 79 et de symbole Au qui fait partie des métaux de transition.

Letter map: A4 vs aur

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

2 ch
A4
3 ch
aur

Role in the sentence - A4 and aur

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: A4 is asymbol and auranoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 68424, derived from the frequency rank of both members and their visual similarity.

A4 is recorded at frequency rank #18,920, classified as asymbol. aur is at rank #49,504, tagged as anoun, pronounced \ˈawɾ\.

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 68424, this pair ranks #59,262 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of A4 vs aur

Shared letters: a. Private to "A4": -. Private to "aur": ru.

"A4" · 1 letters · shape V  ·  "aur" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "A4" for "aur" ever safe?
No - they are not even the same part of speech. "A4" is a symbol and "aur" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "A4" or "aur"?
"A4" is the more common of the two: it sits at frequency rank #18,920 in our French list, against #49,504 for "aur". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "A4" and "aur".

  • Full dictionary entry for "A4" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #59,262 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "A4" and "aur" also get mixed up with nearby pairs, the highest-scored neighbour is "Ahn vs aur". Nearby pair

Confusion rank #59,262 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