altérervsartèresWhat's the difference?

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

Which to use

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

#22,157
“altérer” frequency rank
#14,414
“artères” frequency rank
36571
confusion score

Side-by-Side Comparison

Feature altérer artères
Definition Modifier dans sa nature, dans sa structure, un corps. Pluriel de artère.

Where the eye mixes altérer and artères

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. altérer and artères follow the identical consonant-vowel pattern (VCCVCVC). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
altérer
7 ch
artères

Visual trap between altérer and artères

These two trip readers on the page rather than in the ear: altérer is \al.te.ʁe\ while artères is \aʁ.tɛʁ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 36571, 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\. artères is at rank #14,414, tagged as anoun, pronounced \aʁ.tɛʁ\.

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 36571, this pair ranks #268,677 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of altérer vs artères

Shared letters: aert. Private to "altérer": lé. Private to "artères": sè.

"altérer" · 7 letters · shape VCCVCVC  ·  "artères" · 7 letters · shape VCCVCVC

Frequently Asked Questions

Is swapping "altérer" for "artères" ever safe?
No - they are not even the same part of speech. "altérer" is a verb and "artères" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "altérer" or "artères"?
"artères" is the more common of the two: it sits at frequency rank #14,414 in our French list, against #22,157 for "altérer". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "altérer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "artères" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #268,677 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "altérer" and "artères" also get mixed up with nearby pairs, the highest-scored neighbour is "aliéner vs altérer". Nearby pair

Confusion rank #268,677 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