apovsarcConfusable pair

Quick tell: apo is a conjunction, arc is a noun, so they fill different roles in a sentence.

Which to use

“apo” is a conjunction and “arc” is a noun - they look or sound alike but fill different roles in a sentence.

#38,142
“apo” frequency rank
#3,180
“arc” frequency rank
41322
confusion score

Side-by-Side Comparison

Feature apo arc
Definition Ou, ou bien. 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 apo and arc

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

3 ch
apo
3 ch
arc

Why the eye confuses apo with arc

These two trip readers on the page rather than in the ear: apo is \ˈa.pɔ\ while arc is \aʁk\. 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 (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 41322, derived from the frequency rank of both members and their visual similarity.

apo is recorded at frequency rank #38,142, classified as aconj, pronounced \ˈa.pɔ\. 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 41322, this pair ranks #233,960 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of apo vs arc

Shared letters: a. Private to "apo": op. Private to "arc": cr.

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

Frequently Asked Questions

Can "apo" and "arc" be used interchangeably?
No - they are not even the same part of speech. "apo" is a conjunction and "arc" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "apo" vs "arc" - which ranks higher?
"arc" is the more common of the two: it sits at frequency rank #3,180 in our French list, against #38,142 for "apo". 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 "apo" and "arc" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "apo" 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 #233,960 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "apo" and "arc" also get mixed up with nearby pairs, the highest-scored neighbour is "apo vs aur". Nearby pair

Confusion rank #233,960 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