coulomb
/ˈkuː.lɒm/
"coulomb" is a 7-letter English headword indexed on PlainSpell.
The verdict
“coulomb” is uncommon English (frequency #59,984 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #59,984
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In the International System of Units, the derived unit of electric charge; the amount of electric charge carried by a current of 1 ampere flowing for 1 second. Symbol: C
Corpus desk
Index EN-coulomb · coulomb · English
coulomb · rank #59,984 · 0 variants · 0 confusables
- FREQ-RARE #59,984
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH corse
Nearest frequency peer: corse (-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 “coulomb”
Sparse band: bars invert rank so rarer forms read shorter
- conversant
conversant
40,021 corpus weight
- convivial
convivial
40,020 corpus weight
- Coquitlam
Coquitlam
40,019 corpus weight
- corse
corse
40,018 corpus weight
- coulomb
coulomb
40,017 corpus weight
- countermeas…
countermeasure
40,016 corpus weight
What this shows Long-tail view: where “coulomb” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | coulomb |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈkuː.lɒm/ |
| Letters | 7 |
| Frequency rank | #59,984 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “coulomb” in English
Rare enough to double-check
coulomb is uncommon English at frequency #59,984 among 5,599 “C” headwords, classed as anoun, transcribed /ˈkuː.lɒm/. Rarity is why readers land here mid-draft. Gloss: "In the International System of Units, the derived unit of electric charge; the amount of electric charge carried by a current of 1 ampere flowing for 1 second. Symbol: C".
Zero misspellings are on record for coulomb in our index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From French coulomb, from the French physicist Charles-Augustin de Coulomb. The correct English form is coulomb, spelled C-O-U-L-O-M-B.
Definition
- 1In the International System of Units, the derived unit of electric charge; the amount of electric charge carried by a current of 1 ampere flowing for 1 second. Symbol: C
Recorded use
Wiktionary exampleThese source excerpts show how coulomb appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
He is charged up with enough coulombs to make his hair stand on end.
Etymology
From French coulomb, from the French physicist Charles-Augustin de Coulomb.
This word in other languages
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 "coulomb", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).