AMFvsauxWhich spelling fits?

Quick tell: AMF is a name, aux is an article, so they fill different roles in a sentence.

Which to use

“AMF” is a name and “aux” is an article - they look or sound alike but fill different roles in a sentence.

#27,687
“AMF” frequency rank
#58
“aux” frequency rank
27745
confusion score

Side-by-Side Comparison

Feature AMF aux
Definition Organisme chargé de surveiller et réglementer les marchés financiers en France. Contraction obligatoire de la préposition à et de l'article défini les.

Where the eye mixes AMF and aux

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
AMF
3 ch
aux

Why the eye confuses AMF with aux

These two trip readers on the page rather than in the ear: AMF is \a ɛ.m‿ɛf\ while aux is \o\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs article), which is usually the fastest check. Our composite confusion score for this pair is 27745, derived from the frequency rank of both members and their visual similarity.

AMF is recorded at frequency rank #27,687, classified as aname, pronounced \a ɛ.m‿ɛf\. aux is at rank #58, tagged as anarticle, pronounced \o\.

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 27745, this pair ranks #327,063 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of AMF vs aux

Shared letters: a. Private to "AMF": fm. Private to "aux": ux.

"AMF" · 3 letters · shape VCC  ·  "aux" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "AMF" for "aux" ever safe?
No - they are not even the same part of speech. "AMF" is a name and "aux" an article, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "AMF" vs "aux" - which ranks higher?
"aux" is the more common of the two: it sits at frequency rank #58 in our French list, against #27,687 for "AMF". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "AMF" and "aux" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "AMF" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aux" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #327,063 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "AMF" and "aux" also get mixed up with nearby pairs, the highest-scored neighbour is "AMF vs aur". Nearby pair

Confusion rank #327,063 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