APIvsarcWhat's the difference?

Which to use

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

#18,115
“API” frequency rank
#3,180
“arc” frequency rank
21295
confusion score

Side-by-Side Comparison

Feature API arc
Definition Alphabet phonétique international. Arme de trait servant à lancer des flèches, formée d’une branche de bois ou d’une verge, soit de métal, soit d’autre matière, courbée avec effort au moyen d’une corde qui s’attache aux deux extrémités.

Where the eye mixes API and arc

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

3 ch
API
3 ch
arc

Visual trap between API and arc

A purely visual mix-up. API (\a.pi\) and arc (\aʁk\) 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 21295, derived from the frequency rank of both members and their visual similarity.

API is recorded at frequency rank #18,115, classified as anoun, pronounced \a.pi\. arc is at rank #3,180, tagged as anoun, pronounced \aʁk\.

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 21295, this pair ranks #363,919 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of API vs arc

Shared letters: a. Private to "API": ip. Private to "arc": cr.

"API" · 3 letters · shape VCV  ·  "arc" · 3 letters · shape VCC

Frequently Asked Questions

Do "API" and "arc" mean the same thing in a sentence?
No. They are said differently (\a.pi\ versus \aʁk\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "API" or "arc" show up more?
"arc" is the more common of the two: it sits at frequency rank #3,180 in our French list, against #18,115 for "API". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "API" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arc" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #363,919 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "API" and "arc" also get mixed up with nearby pairs, the highest-scored neighbour is "API vs aur". Nearby pair

Confusion rank #363,919 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