cooperation

n. working together

Cooperation, co-operation or coöperation is the practice of individuals or larger societal entities working in common with mutually agreed-upon goals and possibly methods, instead of working separately in competition, and in which the success of one is dependent and contingent upon the success of another.
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Coop is a Swiss cooperative which operates the second largest supermarket chain in Switzerland after Migros. In 2001, Coop merged with 11 cooperative federations which had been its main suppliers for over 100 years.As of 2005, Coop operates 1437 shops and employs almost 45,000 people. According to Bio Suisse, the Swiss organic producers' association, Coop accounts for half of all the organic food sold in Switzerland. Coop's four primary organic brands are Coop Oecoplan, Coop Naturaline, Coop Naturaplan, and Max Havelaar.
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n. co-operation, co-operate, joining

(n.)
The association of a number of persons for their benefit.
  

(n.)
The act of cooperating, or of operating together to one end; joint operation; concurrent effort or labor.
  

Cooperation between the judicial systems of EU Member States, as well as between their law-enforcement agencies, is a central policy of justice and home affairs; it includes recognition of other Member States' judgments and bringing together procedural law. (See Judicial cooperation in criminal matters, Judicial cooperation in civil matters ; police and customs cooperation ).