cooperation

 
Pronunciation: /kəʊˌɒpəˈreɪʃ(ə)n/
(also co-operation)

noun

[mass noun]
  • the action or process of working together to the same end: they worked in close cooperation with the British Tourist Authority
  • assistance, especially by complying readily with requests: we should like to ask for your cooperation in the survey
  • Economics the formation and operation of cooperatives.

Origin:

late Middle English: from Latin cooperatio(n-), from the verb cooperari (see cooperate); later reinforced by French coopération