What is hashtag meaning?

A hashtag is a word or phrase preceeded by the # symbol which is used on social media platforms to link posts and conversations about a particular topic. Adding a hashtag to a post makes it more discoverable to other users who are interested in that topic. Hashtags can be used for anything from events and campaigns to trending news and viral memes. They are a powerful tool for social media marketing and can help to increase engagement and reach on a post. Additionally, some popular hashtags have become symbols of social movements or cultural phenomena, such as #MeToo and #BlackLivesMatter.