

It’s the official name for the # symbol, but what does it mean? It’s actually a made-up word, invented in the same laboratories where the telephone came from. Since the ascent of social media and its new prominence in everyday life, hashtag has become the favored name.Ĥ: The octothorpe.

But, in the 1980s, people started using hash to refer to the # symbol. A hash has referred to stripes on military jackets since as early as 1910. And of course, the # symbol is sometimes spoken as the word “number,” as in “#2 pencil.”ģ: The hashtag. The word hash predates these other names (but wasn’t very popular until recently). When writing “lb,” scribes often crossed the letters with a line across the top, like a t.Ģ: The number sign. This phrase arose in Britain because pound sign could easily be confused with the British currency. What is the # symbol called?ġ: The pound sign. This name came to be because the symbol comes from the abbreviation for weight, lb, or libra pondo, literally “pound by weight,” in Latin. But, what do we call the # symbol? And, where did it come from? Some of its names are common. It’s a great tool for finding people who are talking about a particular subject (and for categorizing pictures of your fantastic pet). And, once you click on that marked topic, you’ll likely see all public posts about it. If you see something that says “#WordoftheDay,” the tweet or post has something to do with Word of the Day.

On Twitter, Facebook, and Instagram, you tag your friends with the symbol and you tag topics with the #.
