néonvsneuConfusable pair

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

Which to use

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

#32,935
“néon” frequency rank
#40,394
“neu” frequency rank
73329
confusion score

Side-by-Side Comparison

Feature néon neu
Definition Élément chimique de numéro atomique 10 et de symbole Ne qui fait partie des gaz nobles. Nouveau.

Where the eye mixes néon and neu

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. néon runs 4 letters (CVVC) against neu's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
néon
3 ch
neu

Visual trap between néon and neu

These two trip readers on the page rather than in the ear: néon is \ne.ɔ̃\ while neu is \nɔɪ̯\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 73329, derived from the frequency rank of both members and their visual similarity.

néon is recorded at frequency rank #32,935, classified as anoun, pronounced \ne.ɔ̃\. neu is at rank #40,394, tagged as anadj, pronounced \nɔɪ̯\.

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 73329, this pair ranks #40,855 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of néon vs neu

Shared letters: n. Private to "néon": oé. Private to "neu": eu.

"néon" · 4 letters · shape CVVC  ·  "neu" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "néon" for "neu" ever safe?
No - they are not even the same part of speech. "néon" is a noun and "neu" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "néon" or "neu" show up more?
"néon" is the more common of the two: it sits at frequency rank #32,935 in our French list, against #40,394 for "neu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "néon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "neu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #40,855 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "néon" and "neu" also get mixed up with nearby pairs, the highest-scored neighbour is "neu vs nop". Nearby pair

Confusion rank #40,855 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