[koh-op-uh-rey-shuh
n] 
| 1. | an act or instance of working or acting together for a common purpose or benefit; joint action. |
| 2. | more or less active assistance from a person, organization, etc.: We sought the cooperation of various civic leaders. |
| 3. | willingness to cooperate: to indicate cooperation. |
| 4. | Economics. the combination of persons for purposes of production, purchase, or distribution for their joint benefit: producers' cooperation; consumers' cooperation. |
| 5. | Sociology. activity shared for mutual benefit. |
| 6. | Ecology. mutually beneficial interaction among organisms living in a limited area. |
| co·op·er·a·tion (kō-ŏp'ə-rā'shən) n.
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