Motdièse, the new French word for hashtag, is a mistake. A dièse ♯ is a musical sharp sign. A hash sign looks like this # (via @jclanoe)
@qikipedia A hash sign should be called "croisillon" or "octothorpe" in French.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@qikipedia A hash sign should be called "croisillon" or "octothorpe" in French.