cogeneration
"cogeneration" is a 12-letter English headword indexed on PlainSpell.
The verdict
“cogeneration” is uncommon English (frequency #77,542 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #77,542
- frequency rank, English
- 5,599
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The production of heat and/or power from the waste energy of an industrial process.
Corpus desk
Index EN-cogeneration · cogeneration · English
cogeneration · rank #77,542 · 0 variants · 0 confusables
- FREQ-RARE #77,542
- LEN-MEGA 12 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH cliffside
Nearest frequency peer: cliffside (-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 “cogeneration”
Sparse band: bars invert rank so rarer forms read shorter
- classicist
classicist
22,464 corpus weight
- Clausewitz
Clausewitz
22,462 corpus weight
- cliffside
cliffside
22,460 corpus weight
- cogeneration
cogeneration
22,459 corpus weight
- colchicine
colchicine
22,458 corpus weight
- combinator
combinator
22,455 corpus weight
What this shows Long-tail view: where “cogeneration” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | cogeneration |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Frequency rank | #77,542 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “cogeneration” in English
Rare enough to double-check
cogeneration is uncommon English at frequency #77,542 among 5,599 “C” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
We couldn't generate a plausible misspelling set for cogeneration, which points to an orthography that plays by predictable English rules. 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 co- + generation. The correct English form is cogeneration, spelled C-O-G-E-N-E-R-A-T-I-O-N.
Definition
- 1The production of heat and/or power from the waste energy of an industrial process.
- 2The simultaneous or serial production of heat and electricity from the same source.
- 3Joint generation; cocreation.
Recorded use
Wiktionary exampleThese source excerpts show how cogeneration appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The book project is part of a larger effort by Future Earth to build mechanisms for cogeneration of knowledge […]
Etymology
From co- + generation.
Synonyms
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 "cogeneration", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).