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Social Media [noun]: websites and applications that enable users to create and share content or to participate in social networking — Google
Branding [noun]: the activity of connecting a product with a particular name, symbol, etc. or with particular features or ideas, in order to make people recognize and want to buy it — Cambridge Dictionary
Engagement rate [noun]: a metric that measures the level of interaction that a piece of created content is receiving from an audience. ~ Trackmaven.com