content management system
US /ˈkɑntent ˈmænɪdʒmənt ˈsɪstəm/
UK /ˈkɑntent ˈmænɪdʒmənt ˈsɪstəm/

1.
a software system that provides website authoring, collaboration, and administration tools designed to allow users with little knowledge of web programming languages or markup languages to create and manage website content with relative ease
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We decided to use a new content management system for our website redesign.
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Many businesses rely on a content management system to update their online presence efficiently.
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