DefCon
/ˈdɛfkɒn/
"defcon" is a 6-letter English headword indexed on PlainSpell.
The verdict
“DefCon” is uncommon English (frequency #54,113 among 26,416 “D” headwords), classed as a proper noun. The kind of spelling people second-guess.
- #54,113
- frequency rank, English
- 26,416
- “D” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Alternative form of DEFCON.
| Property | Value |
|---|---|
| Headword | DefCon |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈdɛfkɒn/ |
| Letters | 6 |
| Frequency rank | #54,113 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “DefCon” sits in English frequency
Rare enough to double-check
DefCon is uncommon English at frequency #54,113 among 26,416 “D” headwords, classed as aproper noun, transcribed /ˈdɛfkɒn/. Rarity is why readers land here mid-draft. Gloss: "Alternative form of DEFCON.".
We couldn't generate a plausible misspelling set for DefCon, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
No explicit etymology string is stored for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is DefCon, spelled D-E-F-C-O-N.
Definition
- 1Alternative form of DEFCON.
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 “DefCon”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-E-F-C-O-N - every other letter order is a misspelling in standard orthography.
- Say it as /ˈdɛfkɒn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.