cogeneration
"cogeneration" is a 12-letter English headword indexed on PlainSpell.
The verdict
“cogeneration” is uncommon English (frequency #77,542 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.
- #77,542
- frequency rank, English
- 43,570
- “C” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The production of heat and/or power from the waste energy of an industrial process.
| 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) |
Where “cogeneration” sits in English frequency
Rare enough to double-check
cogeneration is uncommon English at frequency #77,542 among 43,570 “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.
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
How do you spell "cogeneration"?
What does "cogeneration" mean?
What is the origin of the word "cogeneration"?
Is PlainSpell free to use?
Using “cogeneration”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-O-G-E-N-E-R-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
- 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.