a person who founds or establishes something with another
Also: co-founder
Word origin
[1595–1605; co- + founder1]This word is first recorded in the period 1595–1605. Other words that entered Englishat around the same time include: density, detail, option, posture, zero
Examples of 'cofounder' in a sentence
cofounder
Earlier in the day another cofounder and chief executive had a little more trouble answering the question of how to make money.
Times, Sunday Times (2008)
The social network's cofounder then delivered a monologue, choosing the points he wanted to address.