/kəʊˈɒpəreɪʃn/ – noun
Definition: Sự hợp tác.
A more thorough explanation: 1. a situation in which countries work together according to agreed rules to achieve some common benefit
2. a situation where people or groups of people work together to achieve some common benefit
Example: 1. The cooperation is over the utilisation of Nile water resources.
2. Both parties look at the cooperation opportunities in the field of marketing and promotion.