Hashtag

What Does Hashtag Mean?

A hashtag is a type of tag used to describe topics on social networking websites, most notably Twitter. Hashtags, like all tags, are a type of metadata (data about data).

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Twitter has popularized the use of the term hashtag, though there are some other social networks that use it. On Twitter, Hashtags give other users and indication what a particular tweet is about. Hashtags are indicated as such because they are prefixed with the pound symbol (#).

Techopedia Explains Hashtag

A tag is basically a keyword. It’s a non-hierarchical method to describe something. For example, take an article that is about security and cloud computing. It would be tough to classify such an article in just one category. Using tags, you can describe that the content is about both topics and differentiate it from, say, an article on cloud computing and performance.

Here are some examples of hashtags:

  • #tech
  • #CloudComputing
  • #FightClub

It’s also common to hear the term at conferences. Often the moderator will announce a hashtag so that all those tweeting can see the thoughts of the other audience members.

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.