hash·​tag | \ ˈhash-ˌtag How to pronounce hashtag (audio) \
plural hashtags

Definition of hashtag

: a word or phrase preceded by the symbol # that classifies or categorizes the accompanying text (such as a tweet) You know a thing is really a thing these days when it has its own hashtag. And there it was last week, trending on Twitter alongside #cincodemayo and #happymothersday: #umpshow, which sprang up in the wake of some shockingly bad umpiring over the first six weeks of the major league season.— Joe Sheehan It's also true that a popular hashtag can benefit important and worthy subjects, such as the recently kidnapped Nigerian schoolgirls.— Mark Leibovich also : the symbol # as used in a hashtag

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Did You Know?

Social media has made the hashtag a ubiquitous part of Internet culture, starting with Twitter and expanding to other sites. Originally designed for categorizing posts, the hashtag can now be a tool for a supplementary coy or witty comment (e.g., #awkward). The word tag can mean "a word or phrase used for description or identification." Hash is short for hash mark, a term for what we more commonly call a pound sign (and, less commonly, an octothorp). The hash in hash mark is probably an alteration of hatch, a term for the crisscrossing of lines (as when adding shading to a drawing).

Examples of hashtag in a Sentence

Recent Examples on the Web

In March 2019, the hashtag #GlobalSussexBabyShower took off, which led royal fans all over the world to donate money to charity. Amy Mackelden, Harper's BAZAAR, "Meghan Markle and Prince Harry Just Shared a Sweet Update on the #GlobalSussexBabyShower Campaign," 15 Apr. 2019 Now, members of the community are making backup plans, searching each other out on Instagram with the hashtag #findfurbyfamily, and strategizing in Discord servers. Kaitlyn Tiffany, Vox, "Every Furby gets a home," 21 Dec. 2018 Rihanna's ultra-popular makeup brand slid into the DMs of the beloved Korean boy group member after fans got the hashtag #FENTYxKAI trending on Twitter. Devon Abelman, Allure, "Why a Fenty Beauty Collaboration With EXO's Kai Would Be a Game Changer," 27 Aug. 2018 The Twitter hashtag #BringWildBoarTeamHome has been used more than 1.2 million times. George Styllis, latimes.com, "From mission impossible to mission accomplished: Thailand rejoices as last boys rescued from cave," 11 July 2018 The hashtag #LuisMiguelLaSerie has been trending for weeks on Twitter. Adam Williams, Billboard, "How a Netflix Series Revived the Career of Latin Pop Icon Luis Miguel," 10 July 2018 Okoumou also drew supporters on Twitter, where the hashtag #TheresePatriciaOkoumou was trending Thursday afternoon. Crimesider Staff, CBS News, ""I went as high as I could": Statue of Liberty climber cheered outside court," 5 July 2018 Case in point: thousands of people posting the hashtag #CampaigningWhileBlack to call attention to Bynum's experience. refinery29.com, "Rep. Janelle Bynum Says Someone Called Police While She Was Campaigning," 5 July 2018 The hashtag #AbolishICE has become a rallying cry for immigration activists. NBC News, "Sen. Kamala Harris not ruling out 2020 White House run," 25 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hashtag.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hashtag

2007, in the meaning defined above

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Dictionary Entries near hashtag

hash out

hash sign



hash up



Statistics for hashtag

Last Updated

12 May 2019

Look-up Popularity

Time Traveler for hashtag

The first known use of hashtag was in 2007

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More Definitions for hashtag



English Language Learners Definition of hashtag

: a word or phrase that starts with the symbol # and that briefly indicates what a message (such as a tweet) is about

Comments on hashtag

What made you want to look up hashtag? Please tell us where you read or heard it (including the quote, if possible).


something valued as if it were money

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