What does cofounded mean?
Cofounded is the simple past tense and past participle of the verb cofound, which means to establish something — typically a company, organization, institution, or movement — together with one or more other people. It is used whenever joint creation is being described: 'She cofounded the startup with two college friends,' or 'The charity was cofounded in 2005.' The word emphasizes shared credit for an act of founding, distinguishing it from the simpler verb founded, which may describe solo establishment. Cofounded carries an entrepreneurial, achievement-oriented connotation and appears frequently in biographies, press releases, news profiles, and corporate histories. Both 'cofounded' and the hyphenated 'co-founded' are accepted spellings, with preference varying among style guides; the unhyphenated form has become increasingly common in modern American usage. Related forms include cofounder (a person who jointly establishes something) and cofounding (the act itself).
verb (simple past and past participle of 'cofound')Cofounded is the past tense and past participle of the verb cofound, meaning to establish or set up an organization, company, or institution jointly with one or more other people.
- To have jointly established or set up an organization, company, school, or other institution with one or more partners.
"She cofounded a nonprofit that provides clean drinking water to rural communities."
"Steve Jobs cofounded Apple with Steve Wozniak in his parents' garage."
"The two professors cofounded the research institute to study climate change."
Google was cofounded by two PhD students in 1998 — and the hyphenated 'co-founded' and closed-up 'cofounded' remain so contested that major style guides still disagree on which to use.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cofounded
The word derives from the Latin root fundare, meaning 'to lay the bottom of, to found or establish', which also gave English the words found, founder, and foundation. The prefix co-, from Latin com- meaning 'together with', was attached to found in modern English to express joint establishment, producing the compound cofound and its inflected form cofounded. This pattern of combining co- with existing verbs became productive in English during the nineteenth and twentieth centuries as collaborative enterprise grew more common.
Related word forms
How cofounded is actually used
Both spellings, 'cofounded' and 'co-founded', are widely accepted; many style guides prefer the hyphenated form for clarity, though usage has shifted toward the unhyphenated form in business and tech contexts. The word carries a positive, entrepreneurial connotation and appears most often in biographical, journalistic, and corporate writing. It is standard register, neither formal nor informal.
Easily confused with cofounded
Confounded means confused or baffled, whereas cofounded refers to jointly establishing something — they differ only in spelling but are entirely unrelated in meaning.