What is ha tag?

A hashtag is a word or phrase preceded by the hash symbol (#), used on social media platforms to categorize content and make it easier to find. Hashtags can be used to join conversations on a specific topic, make posts more discoverable, and interact with other users who are interested in the same subject. Users can click on hashtags to see more posts related to that topic. Hashtags are commonly used on platforms like Twitter, Instagram, and Facebook.