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A CDE Definition

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hash tag

See hashtag.


A topic identifier in text and chat messages, which allows them to be searched as a group. Commonly used in tweets, the hashtag is the name of the group with a number sign (#) prefix, also called a hash sign. The hashtag is a link, which jumps the user to the topic just like a hyperlink in an email or Web page.

Hashtags can be created and used to identify anything, including people, businesses, organizations, sports teams, political parties, hobbies, events, philosophies, moods, rants and raves. For example, the hashtag for the United States Marines is #marines. The athletically inclined might search for #triathlon or #ironman. See hash, tag, Twitter and bashtagging.

Everyday Vocabulary
In this example at the Philadelphia airport, "hashtag worthy" means the trip is worth talking about.

Personal Use Only

Before/After Your Search Term
harmonichash total
harmonic adapterhash value
harmonic distortionhashing
HARQhashing algorithm
Harvard GraphicsHASP
hash busterhat
hash functionhAtom
hash tableHAV

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