argonvsArranWhich spelling fits?

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

Which to use

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

#34,381
“argon” frequency rank
#42,004
“Arran” frequency rank
76385
confusion score

Side-by-Side Comparison

Feature argon Arran
Definition The chemical element (symbol Ar) with an atomic number of 18. The third most abundant gas in the Earth's atmosphere, it is a colourless, odourless, inert noble gas. Ellipsis of Isle of Arran, Scotland.

Where the eye mixes argon and Arran

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
argon
5 ch
Arran

Visual trap between argon and Arran

These two trip readers on the page rather than in the ear: argon is /ˈɑːɹɡɒn/ while Arran is /ˈæɹən/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 76385, derived from the frequency rank of both members and their visual similarity.

argon is recorded at frequency rank #34,381, classified as anoun, pronounced /ˈɑːɹɡɒn/. Arran is at rank #42,004, tagged as aname, pronounced /ˈæɹən/.

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 76385, this pair ranks #30,275 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of argon vs Arran

Shared letters: anr. Private to "argon": go. Private to "Arran": -.

"argon" · 5 letters · shape VCCVC  ·  "Arran" · 5 letters · shape VCCVC

Known mistypes of this pair

  • argonagron · arggon · argno · argonn · arogn · arrgon · ragon
  • Arranaran · ararn · arrann · arrna · raran

Frequently Asked Questions

Is swapping "argon" for "Arran" ever safe?
No - they are not even the same part of speech. "argon" is a noun and "Arran" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "argon" or "Arran" show up more?
"argon" is the more common of the two: it sits at frequency rank #34,381 in our English list, against #42,004 for "Arran". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "argon" and "Arran" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "argon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Arran" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,275 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "argon" and "Arran" also get mixed up with nearby pairs, the highest-scored neighbour is "Arran vs arras". 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 #30,275 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list