acidevsacuitéWhat's the difference?

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

Which to use

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

#4,302
“acide” frequency rank
#27,680
“acuité” frequency rank
31982
confusion score

Side-by-Side Comparison

Feature acide acuité
Definition Qualifie une saveur aigre ou piquante. Qualité de ce qui est aigu.

Where the spellings diverge

Shared letters are muted; the letters that actually set acide and acuité apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch
acide
6 ch
acuité

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: acide is \a.sid\ while acuité is \a.kɥi.te\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 31982, derived from the frequency rank of both members and their visual similarity.

acide is recorded at frequency rank #4,302, classified as anadj, pronounced \a.sid\. acuité is at rank #27,680, tagged as anoun, pronounced \a.kɥi.te\.

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 31982, this pair ranks #300,332 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acide vs acuité

Shared letters: aci. Private to "acide": de. Private to "acuité": tué.

"acide" · 5 letters · shape VCVCV  ·  "acuité" · 6 letters · shape VCVVCV

Known mistypes of this pair

  • acideaccide · acdie · acidde · acied · aicde · caide

Frequency comparison

acide#4,302
acuité#27,680

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "acide" and "acuité" be used interchangeably?
No - they are not even the same part of speech. "acide" is an adjective and "acuité" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "acide" or "acuité"?
"acide" is the more common of the two: it sits at frequency rank #4,302 in our French list, against #27,680 for "acuité". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering acide vs acuité

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “acide”; for a noun, it's “acuité”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “acide” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list