1. To cause to work or function in a common action or effort: coordinating the moving parts of a machine. 2. To make harmonious; harmonize: coordinate the colors of a design. 3. Grammar To link (syntactic units) at an equal level. We need someone to coordinate the whole campaign. A number of charities are coordinating their efforts to distribute food to the region. Coordinating - WordReference English dictionary, questions, discussion and forums. All Free. COORDINATING definition: to organize or integrate ( diverse elements ) in a harmonious operation | Meaning, pronunciation, translations and examples in American English