sulphuric
"sulphuric" is a 9-letter English headword indexed on PlainSpell.
The verdict
“sulphuric” is uncommon English (frequency #62,542 among 6,566 “S” headwords), classed as an adjective. The kind of spelling people second-guess.
- #62,542
- frequency rank, English
- 6,566
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative spelling of sulfuric.
Corpus desk
Index EN-sulphuric · sulphuric · English
sulphuric · rank #62,542 · 0 variants · 0 confusables
- FREQ-RARE #62,542
- LEN-LONG 9 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 6,566
- PHOTO-FINISH sunburnt
Nearest frequency peer: sunburnt (+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 “sulphuric”
Sparse band: bars invert rank so rarer forms read shorter
- strychnine
strychnine
37,463 corpus weight
- subsidise
subsidise
37,462 corpus weight
- suckered
suckered
37,461 corpus weight
- sulphuric
sulphuric
37,459 corpus weight
- sunburnt
sunburnt
37,458 corpus weight
- Sunda
Sunda
37,457 corpus weight
What this shows Long-tail view: where “sulphuric” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | sulphuric |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Frequency rank | #62,542 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “sulphuric” in English
Rare enough to double-check
sulphuric is uncommon English at frequency #62,542 among 6,566 “S” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Alternative spelling of sulfuric.".
Zero misspellings are on record for sulphuric in our index, a sign its spelling follows regular English conventions. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From sulphur + -ic. The correct English form is sulphuric, spelled S-U-L-P-H-U-R-I-C.
Definition
- 1Alternative spelling of sulfuric.
Recorded use
Wiktionary exampleThese source excerpts show how sulphuric appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
In the case of nitric acid, however, the employment of the aræometer introduces far greater errors than when it is used for sulphuric acid, hydrochloric acid, and in most other cases, as the concentrated nitric acids as a rule always contain nitrogen tetroxide in solution, the quantity being seldom less than 1 per cent., but more generally several per cen…
Etymology
From sulphur + -ic.
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 "sulphuric", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).