What does the word cooperate mean?

Usage examples for cooperate

  1. How you cooperate in this matter. – Community Civics and Rural Life by Arthur W. Dunn
  2. In order to set up national government, Hamilton and his colleagues had to make plans, not on the theory that men would cooperate because they had a sense of common interest, but on the theory that men could be governed, if special interests were kept in equilibrium by a balance of power. – Public Opinion by Walter Lippmann