APB vs au, What's the Difference?

Which to use

“APB” is a noun and “au” is an article - they look or sound alike but fill different roles in a sentence.

#34,865
“APB” frequency rank: #24
“au” frequency rank: 34889
confusion score

Side-by-Side Comparison

Feature	APB	au
Definition	Nom du logiciel utilisé de 2012 à 2017 pour enregistrer les souhaits des élèves concernant leur poursuite d'études après le baccalauréat. Décrié pour ses nombreux problèmes informatiques, il est remplacé pour 2018 par Parcoursup.	Contraction de la préposition à et de l'article défini le.

Where the eye mixes APB and au

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

3 ch

APB

2 ch

Look-alike desk: APB vs au

These two trip readers on the page rather than in the ear: APB is \a.pe.be\ while au is \o\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs article), which is usually the fastest check. Our composite confusion score for this pair is 34889, derived from the frequency rank of both members and their visual similarity.

APB is recorded at frequency rank #34,865, classified as anoun, pronounced \a.pe.be\. au is at rank #24, 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 34889, this pair ranks #280,654 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of APB vs au

Shared letters: a. Private to "APB": bp. Private to "au": u.

"APB" · 3 letters · shape VCC · "au" · 2 letters · shape VV

Frequently Asked Questions

Is swapping "APB" for "au" ever safe?

No - they are not even the same part of speech. "APB" is a noun and "au" an article, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "APB" vs "au" - which ranks higher?

"au" is the more common of the two: it sits at frequency rank #24 in our French list, against #34,865 for "APB". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "APB" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "au" - compare definitions side by side with the headword page. Word entry
This pair ranks #280,654 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"APB" and "au" also get mixed up with nearby pairs, the highest-scored neighbour is "APB vs aur". Nearby pair

Confusion rank #280,654 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.