- an act or instance of working or acting together for a common purpose or benefit; joint action.
- more or less active assistance from a person, organization, etc.: We sought the cooperation of various civic leaders.
- willingness to cooperate: to indicate cooperation.
- the combination of persons for purposes of production, purchase, or distribution for their joint benefit: producers' cooperation; consumers' cooperation.
- activity shared for mutual benefit.
- mutually beneficial interaction among organisms living in a limited area.
- joint operation or action
- assistance or willingness to assist
- the combination of consumers, workers, farmers, etc, in activities usually embracing production, distribution, or trade
- beneficial but inessential interaction between two species in a community
