Definition of "Cooperative" :

noun: a jointly owned commercial enterprise (usually organized by farmers or consumers) that produces and distributes goods and services and is run for the benefit of its owners

noun: an association formed and operated for the benefit of those using it

adjective: willing to adjust to differences in order to obtain agreement

adjective: done with or working with others for a common purpose or benefit

"A cooperative effort."

adjective: involving the joint activity of two or more

"A cooperative effort."