cooperating
adj. B1 Intermediate US //koʊˈɑpɝˌeɪtɪŋ// UK //kəʊˈɒpəɹˌeɪtɪŋ// co·op·er·at·ing
adj. working together with others to achieve a shared goal. You use this to describe people or groups who help each other.
adj. acting jointly with others to achieve a common purpose. Typically used predicatively after linking verbs such as 'be' or 'seem'.
The two teams are cooperating on the new project.
The neighbours are cooperating to keep the street clean and safe for children.
Despite their political differences, the two nations are cooperating closely to address the growing threat of climate change.
Usage
Often followed by 'with' to indicate the partner in the action.