cofounded

adj

"cofounded" is a 9-letter English headword indexed on PlainSpell.

The verdict

“cofounded” is uncommon English (frequency #96,870 among 43,570 “C” headwords), classed as an adjective. The kind of spelling people second-guess.

#96,870
frequency rank, English
43,570
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Founded at the same time as another, or by two or more people.

Key facts for cofounded
PropertyValue
Headwordcofounded
LanguageEnglish
Part of speechAdjective
Letters9
Frequency rank#96,870
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cofounded” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). cofounded lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cofounded is uncommon English at frequency #96,870 among 43,570 “C” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Founded at the same time as another, or by two or more people.".

The misspelling generator found no plausible variants for cofounded, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is cofounded, spelled C-O-F-O-U-N-D-E-D.

Definition

  1. 1
    Founded at the same time as another, or by two or more people.

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 "cofounded"?
"cofounded" is spelled C-O-F-O-U-N-D-E-D.
What does "cofounded" mean?
As an adjective, "cofounded" means: Founded at the same time as another, or by two or more people.
What language does "cofounded" come from?
"cofounded" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “cofounded”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-O-F-O-U-N-D-E-D - 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list