content management system UK /ˈkɒntɛnt ˈmænɪdʒmənt ˈsɪstəm/US /ˈkɑntɛnt ˈmænɪdʒmənt ˈsɪstəm/ noun1 •A computer software system for organizing and facilitating collaborative creation of documents and other content, especially for loading to a website. formscontent management systems