argon
/ˈɑːɹɡɒn/
"argon" is a 5-letter English headword indexed on PlainSpell.
The verdict
“argon” is a moderately-common English word, ranked #34,381 in English word frequency and used as a noun.
- #34,381
- frequency rank, English
- 5
- letters
- 7
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - 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.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | argon |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɑːɹɡɒn/ |
| Letters | 5 |
| Frequency rank | #34,381 |
| Misspellings tracked | 7 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “argon” sits in English frequency
Spelling & Dictionary Insight
The English entry for argon is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈɑːɹɡɒn/. Corpus data places it at rank #34,381 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 7 likely wrong-spelling variants for argon, with forms such as "agron", "arggon", and "argno". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "aro", "ARN", "Avon", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From Ancient Greek ἀργός (argós, “idle, lazy”), because of its inertness, + -on, used for all noble gases. The correct English form is argon, spelled A-R-G-O-N.
Definition
- 1The 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.
- 2A single atom of this element.
Etymology
From Ancient Greek ἀργός (argós, “idle, lazy”), because of its inertness, + -on, used for all noble gases.
Synonyms
This word in other languages
Common misspellings
Also misspelled as: agron,arggon,argno,argonn,arogn,arrgon,ragon
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of argon - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “argon”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-R-G-O-N - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɑːɹɡɒn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “aro” - see the side-by-side comparison. argon vs aro
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.