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cofounder

American  
[koh-foun-der] / koʊˈfaʊn dər /
Or co-founder

noun

cofounders plural
  1. a person who founds or establishes something with another.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of cofounder

First recorded in 1595–1605; co- + founder 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It’s a bit of an overstatement to say “the Pope came out as anti-A.I.” with last week’s encyclical—after all, Anthropic’s cofounder was there for the release.

From Slate Jun. 5, 2026

"In five years' time, we hope to be able to have a wide range of ingredients" drawing on the company's fermentation platform, says Daryl Pek, a cofounder of Mottainai Food Tech.

From BBC Jun. 4, 2026

Instead, she and her cofounder, Louisa Pierce, replaced the material with more durable hardwood flooring throughout the upper level.

From MarketWatch Jun. 1, 2026

Designer Rob Janoff said that Apple cofounder Steve Jobs gave him one terse instruction when he commissioned a new logo in January 1977: "don't make it cute".

From Barron's Mar. 29, 2026

The cofounder, Sasha Chanoff, has been a vocal advocate for the Banyamulenge.

From "How Dare the Sun Rise" by Sandra Uwiringiyimana

"A particularly hair-raising moment was when my cofounders asked, 'If you have control, what happens when you die?' He said something like '...maybe it should pass to my children.'"

From BBC May 12, 2026

BioNTech shares fell 14% after cofounders announced their departure and the company projected 2026 revenue below forecasts.

From The Wall Street Journal Mar. 10, 2026

The cofounders of Anthropic, who were also executives at OpenAI until 2020, had broken from their employer over disagreements regarding how to ensure AI's safe development and governance.

From Reuters Nov. 22, 2023

“We are relieved and overjoyed to continue helping the many women who come to our clinic seeking help,” said Dede Chism and Abby Sinnett, mother-and-daughter cofounders of Bella Health and Wellness.

From Washington Times Oct. 23, 2023

As the app continues to grow, cofounders Rohan Seth and Paul Davison are looking to expand their team, even dropping a link to the company’s job board in Wednesday’s announcement.

From Los Angeles Times Jul. 21, 2021

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