<p><strong>Noun</strong></p><ul><li>an act or instance of working or acting together for a common purpose or benefit; joint action.</li><li>more or less active assistance from a person, organization, etc.: We sought the cooperation of various civic leaders.</li><li>willingness to cooperate: to indicate cooperation.</li><li>the combination of persons for purposes of production, purchase, or distribution for their joint benefit: producers' cooperation; consumers' cooperation.</li><li>activity shared for mutual benefit.</li><li>mutually beneficial interaction among organisms living in a limited area.</li></ul>