This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who founds something, such as an organization, together with someone else

n. A joint founder.

n. one of a group of founders

"At the end of his four minutes, the presenter told the audience that his "cofounder is the one in the back wearing the same sweet t-shirt.""

Founding Father    founder    father    beginner   

cofound   

bounder    flounder    founder    grounder    pounder    rounder    sounder   

vice-presidents    vice-chairman    head-mistress    co-founder    omer    volatilization    committeeman    minibar    scudo    wetter