What Does a Hashtag Mean?

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A hashtag is a word or phrase preceded by the # symbol used on social media platforms to categorize content and make it easily searchable. It helps users discover and join conversations on a specific topic. Hashtags are widely used on platforms like Twitter, Instagram, and Facebook to connect people with similar interests and to increase the visibility of posts. They can be created by anyone and can be specific to events, trends, or general topics. Hashtags have become an essential tool for social media marketing, allowing businesses and individuals to reach a wider audience and engage in relevant discussions.


Are you active on social media? Whether you’re updating your Facebook status, tweeting on Twitter, or sharing a selfie on Instagram, there’s probably a symbol that you’re very familiar with. What are we referring to? It’s the hashtag symbol, of course!

The humble hashtag symbol looks like this: #. If you ask your parents, they might say it’s a number sign or a pound sign. Your grandparents might even say it’s a tic-tac-toe board! However, in today’s world, it’s known as a hashtag symbol.

So, what exactly is a hashtag? It’s a word or phrase without spaces that is preceded by the hashtag symbol to create a label. Hashtags are used as metadata tags on social media platforms, allowing users to categorize and search for messages by topic. By using hashtags, social media users can participate in broader conversations about specific topics. Many social media sites automatically turn any word or phrase without spaces that is preceded by the hashtag symbol into a clickable link.

For example, if you search for #wonderopolis on Twitter, you will see all the tweets that have included the hashtag #wonderopolis. If you tweet about how much you love #wonderopolis, others who search for the #wonderopolis hashtag can see your comment and join in the conversation.

The use of hashtags has become so widespread that the Oxford English Dictionary officially added the word “hashtag” in 2014. But how did the # symbol transition from being a number sign, a pound sign, or a tic-tac-toe board to becoming a hashtag?

Researchers believe that the # symbol was originally called a “hatch mark” in computing and telecommunications contexts many decades ago. It eventually changed to a “hash mark” and was further shortened to a “hash.” Given its use as a metadata tag, the word “hashtag” naturally evolved over time.

The use of hashtags in social media is closely associated with the microblogging site Twitter. The idea of using # followed by a word or phrase to create a hashtag was first proposed by software advocate Chris Messina in a tweet in August 2007. However, researchers believe that this method of tagging actually dates back to at least 1988 when it was used in an Internet Relay Chat protocol.

Today, it’s easy to determine which hashtags are popular. You can simply check Twitter’s “Trending Topics” to see what topics Twitter users are tweeting about the most. Additionally, you can search for popular hashtags on Facebook, Instagram, Flickr, Google+, and various other websites.

Using hashtags is simple. All you have to do is place a hashtag symbol before a word or phrase. The rules are straightforward: no spaces are allowed, and special characters and punctuation marks like commas, periods, exclamation points, and question marks are not permitted.

Hashtags can be a fun way to improve communication and connect with others who are discussing the same topic. They provide a convenient way to refer to a topic, add context, or inject humor or sarcasm into a message.

You can use an existing hashtag or create your own. The possibilities for creativity are endless when it comes to developing your own hashtags. In fact, many marketing experts now regularly use hashtags to draw attention to the brands they represent.

Give It a Try

We hope you enjoyed today’s Wonder of the Day! Make sure to explore the following activities with a friend or family member:

  • Are you active on social media platforms such as Instagram, Twitter, or Facebook? Ask an adult friend or family member to assist you in browsing these platforms to see how hashtags are used. Try searching for hashtags that interest you. For instance, what kind of results do you get when you search for #wonderopolis? Have fun discovering how hashtags can help you find relevant information about a specific topic.
  • Can hashtags have an impact on social causes? Experts would definitely agree that they can in today’s era of social media. Check out Time’s Top 10 Hashtags that Started a Conversation to learn more about popular hashtags that raised awareness about specific issues in 2014.
  • Feeling up for a challenge? Create your own unique hashtag for a special project or hobby of yours. Do you enjoy playing a musical instrument? Are you a geocacher? Do you play soccer or football? Do you have a unique hobby, like stamp collecting? Whatever your spare time activity is, come up with your own unique hashtag that you can use in social media posts about your hobby. For example, if your name is Hannah and you love collecting stamps, maybe you could start a hashtag like #hannahlovesstamps! What other ideas can you think of? Share your ideas with a friend or family member. Do they like your ideas? What ideas do they have?

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