altérervsalternéeWhat's the difference?

Quick tell: altérer is a verb, alternée is a noun, so they fill different roles in a sentence.

Which to use

“altérer” is a verb and “alternée” is a noun - they look or sound alike but fill different roles in a sentence.

#22,157
“altérer” frequency rank
#30,892
“alternée” frequency rank
53049
confusion score

Side-by-Side Comparison

Feature altérer alternée
Definition Modifier dans sa nature, dans sa structure, un corps. Espèce de papillon, de nom scientifique Epirrhoe alternata.

Where the spellings diverge

Shared letters are muted; the letters that actually set altérer and alternée apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.

7 ch
altérer
8 ch
alternée

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: altérer is \al.te.ʁe\ while alternée is \al.tɛʁ.ne\. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 53049, derived from the frequency rank of both members and their visual similarity.

altérer is recorded at frequency rank #22,157, classified as averb, pronounced \al.te.ʁe\. alternée is at rank #30,892, tagged as anoun, pronounced \al.tɛʁ.ne\.

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 53049, this pair ranks #143,453 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of altérer vs alternée

Shared letters: aelrté. Private to "altérer": -. Private to "alternée": n.

"altérer" · 7 letters · shape VCCVCVC  ·  "alternée" · 8 letters · shape VCCVCCVV

Frequency comparison

altérer#22,157
alternée#30,892

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "altérer" and "alternée" be used interchangeably?
No - they are not even the same part of speech. "altérer" is a verb and "alternée" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "altérer" or "alternée"?
"altérer" is the more common of the two: it sits at frequency rank #22,157 in our French list, against #30,892 for "alternée". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering altérer vs alternée

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “altérer”; for a noun, it's “alternée”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “altérer” 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