acsvsaptWhat's the difference?

Quick tell: acs is a noun, apt is an adjective, so they fill different roles in a sentence.

Which to use

“acs” is a noun and “apt” is an adjective - they look or sound alike but fill different roles in a sentence.

#45,982
“acs” frequency rank
#29,641
“apt” frequency rank
75623
confusion score

Side-by-Side Comparison

Feature acs apt
Definition Pluriel d’ac. Enclin, disposé, dif=susceptible de, avoir tendance à.

Letter map: acs vs apt

Shared letters muted; letters that set acs and apt apart highlighted. Shared run: 1.

3 ch
acs
3 ch
apt

Role in the sentence - acs and apt

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: acs is anoun and aptanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 75623, derived from the frequency rank of both members and their visual similarity.

acs is recorded at frequency rank #45,982, classified as anoun, pronounced \ˈat͡s\. apt is at rank #29,641, tagged as anadj.

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 75623, this pair ranks #33,511 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of acs vs apt

Shared letters: a. Private to "acs": cs. Private to "apt": pt.

"acs" · 3 letters · shape VCC  ·  "apt" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "acs" for "apt" ever safe?
No - they are not even the same part of speech. "acs" is a noun and "apt" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "acs" vs "apt" - which ranks higher?
"apt" is the more common of the two: it sits at frequency rank #29,641 in our French list, against #45,982 for "acs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "acs" and "apt".

  • Full dictionary entry for "acs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apt" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #33,511 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "acs" and "apt" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs aves". Nearby pair

Confusion rank #33,511 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