argonvsArlonWhich spelling fits?

Quick tell: argon is a noun, Arlon is a name, so they fill different roles in a sentence.

Which to use

“argon” is a noun and “Arlon” is a name - they look or sound alike but fill different roles in a sentence.

#45,441
“argon” frequency rank
#33,551
“Arlon” frequency rank
78992
confusion score

Side-by-Side Comparison

Feature argon Arlon
Definition Élément chimique de numéro atomique 18 et de symbole Ar qui fait partie de la série chimique de gaz nobles. Commune de la province de Luxembourg de la région wallonne de Belgique.

Where the eye mixes argon and Arlon

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

5 ch
argon
5 ch
Arlon

Look-alike desk: argon vs Arlon

These two trip readers on the page rather than in the ear: argon is \aʁ.ɡɔ̃\ while Arlon is \aʁ.lɔ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “argon” becomes l in “Arlon”, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 78992, derived from the frequency rank of both members and their visual similarity.

argon is recorded at frequency rank #45,441, classified as anoun, pronounced \aʁ.ɡɔ̃\. Arlon is at rank #33,551, tagged as aname, pronounced \aʁ.lɔ̃\.

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 78992, this pair ranks #24,331 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of argon vs Arlon

Shared letters: anor. Private to "argon": g. Private to "Arlon": l.

"argon" · 5 letters · shape VCCVC  ·  "Arlon" · 5 letters · shape VCCVC

Known mistypes of this pair

  • argon ← agron · arggon · argno · argonn · arogn · arrgon · ragon
  • Arlon ← alron · arllon · arlno · arlonn · aroln · arrlon · ralon

Frequently Asked Questions

Can "argon" and "Arlon" be used interchangeably?
No - they are not even the same part of speech. "argon" is a noun and "Arlon" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "argon" or "Arlon"?
"Arlon" is the more common of the two: it sits at frequency rank #33,551 in our French list, against #45,441 for "argon". 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 "argon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Arlon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,331 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "argon" and "Arlon" also get mixed up with nearby pairs, the highest-scored neighbour is "argon vs Argonne". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #24,331 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