The Brief: A hashtag (#) is a symbol used on social media to identify posts related to a certain topic.

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A hashtag (#) is a symbol used on social media to identify posts related to a certain topic.

Examples include #Instagood, #Blessed, #Love, #TBT, #MondayMorning, and #WCW.

On Instagram, Facebook, Twitter, and other social media platforms, a search for a specific hashtag will bring up posts hash-tagged with that topic.