Which to use
“A2” is a noun and “A4” is a symbol - they look or sound alike but fill different roles in a sentence.
- #15,292
- “A2” frequency rank
- #18,920
- “A4” frequency rank
- 34212
- confusion score
Side-by-Side Comparison
| Feature | A2 | A4 |
|---|---|---|
| Definition | Niveau de langue correspondant à un niveau élémentaire (intermédiaire ou usuel) : personne capable de comprendre des phrases isolées et des expressions fréquemment utilisées en relation avec des domaines de l’environnement quotidien (par exemple, informations personnelles et familiales simples, achats, travail) ; pouvoir communiquer lors de tâches simples et habituelles ne demandant qu’un échange d'informations simple et direct sur des sujets familiers et habituels ; savoir décrire avec des moyens simples sa formation, son environnement immédiat et évoquer des sujets qui correspondent à des besoins immédiats. | Format de papier de 210 mm × 297 mm. |
Where the spellings diverge
Shared letters are muted; the letters that actually set A2 and A4 apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A2 and A4 form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - 2 in “A2” becomes 4 in “A4” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 34212, derived from the frequency rank of both members and their visual similarity.
A2 is recorded at frequency rank #15,292, classified as anoun, pronounced \ɑ.dø\. A4 is at rank #18,920, tagged as asymbol.
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 34212, this pair ranks #285,391 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "A2" and "A4" be used interchangeably?
Remembering A2 vs A4
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “A2”; for a symbol, it's “A4”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “A2” entry
- Browse more pairs most likely to be confused. Most confusable