aptvsapuWhat's the difference?

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

Which to use

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

#29,641
“apt” frequency rank
#48,918
“apu” frequency rank
78559
confusion score

Side-by-Side Comparison

Feature apt apu
Definition Enclin, disposé, dif=susceptible de, avoir tendance à. Banquise.

Letter map: apt vs apu

Shared letters muted; letters that set apt and apu apart highlighted. Shared run: 2.

3 ch
apt
3 ch
apu

Part-of-speech tell for apt / apu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: apt is anadjective and apuanoun. On the page they differ by a single letter - t in “apt” becomes u in “apu”. Our composite confusion score for this pair is 78559, derived from the frequency rank of both members and their visual similarity.

apt is recorded at frequency rank #29,641, classified as anadj. apu is at rank #48,918, tagged as anoun, pronounced \a.pu\.

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 78559, this pair ranks #25,431 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of apt vs apu

Shared letters: ap. Private to "apt": t. Private to "apu": u.

"apt" · 3 letters · shape VCC  ·  "apu" · 3 letters · shape VCV

Frequently Asked Questions

Can "apt" and "apu" be used interchangeably?
No - they are not even the same part of speech. "apt" is an adjective and "apu" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "apt" vs "apu" - which ranks higher?
"apt" is the more common of the two: it sits at frequency rank #29,641 in our French list, against #48,918 for "apu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "apt" and "apu". Here's where to go from here.

  • Full dictionary entry for "apt" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #25,431 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "apt" and "apu" also get mixed up with nearby pairs, the highest-scored neighbour is "apu vs aur". Nearby pair

Confusion rank #25,431 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