acsvsaurConfusable pair

Which to use

“acs” and “aur” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#45,982
“acs” frequency rank
#49,504
“aur” frequency rank
95486
confusion score

Side-by-Side Comparison

Feature acs aur
Definition Pluriel d’ac. Or. Élément chimique de numéro atomique 79 et de symbole Au qui fait partie des métaux de transition.

Where the eye mixes acs and aur

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. acs (VCC) and aur (VVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
acs
3 ch
aur

Visual trap between acs and aur

A purely visual mix-up. acs (\ˈat͡s\) and aur (\ˈawɾ\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 95486, derived from the frequency rank of both members and their visual similarity.

acs is recorded at frequency rank #45,982, classified as anoun, pronounced \ˈat͡s\. 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 95486, this pair ranks #1,070 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of acs vs aur

Shared letters: a. Private to "acs": cs. Private to "aur": ru.

"acs" · 3 letters · shape VCC  ·  "aur" · 3 letters · shape VVC

Frequently Asked Questions

Can "acs" and "aur" be used interchangeably?
No. They are said differently (\ˈat͡s\ versus \ˈawɾ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "acs" or "aur"?
"acs" is the more common of the two: it sits at frequency rank #45,982 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

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "acs" 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 #1,070 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "acs" and "aur" also get mixed up with nearby pairs, the highest-scored neighbour is "Ahn vs aur". Nearby pair

Confusion rank #1,070 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