DFO
"dfo" is a 3-letter English headword indexed on PlainSpell.
The verdict
“DFO” is uncommon English (frequency #76,710 among 3,470 “D” headwords), classed as a noun. The kind of spelling people second-guess.
- #76,710
- frequency rank, English
- 3,470
- “D” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of diesel fuel oil.
Corpus desk
Index EN-dfo · DFO · English
DFO · rank #76,710 · 0 variants · 0 confusables
- FREQ-RARE #76,710
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,470
- PHOTO-FINISH Devendra
Nearest frequency peer: Devendra (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “DFO”
Sparse band: bars invert rank so rarer forms read shorter
- devan
devan
23,295 corpus weight
- develope
develope
23,294 corpus weight
- Devendra
Devendra
23,292 corpus weight
- DFO
DFO
23,291 corpus weight
- diatomaceous
diatomaceous
23,288 corpus weight
- Dickensian
Dickensian
23,287 corpus weight
What this shows Long-tail view: where “DFO” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | DFO |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #76,710 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “DFO” in English
Rare enough to double-check
DFO is uncommon English at frequency #76,710 among 3,470 “D” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Initialism of diesel fuel oil.".
The misspelling generator found no plausible variants for DFO, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Wiktionary doesn't record an etymology for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is DFO, spelled D-F-O.
Definition
- 1Initialism of diesel fuel oil.
Recorded use
Wiktionary exampleThese source excerpts show how DFO appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Near-synonym: HHO (usually interchangeable combustibly, but not legally)
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "DFO", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).