Twitter is an online social networking platform that allows users to post short text updates called tweets that are limited to 140 characters. Users can follow other accounts and have their own followers, share content through retweets, and send direct messages. Hashtags are used to group tweets on trending topics, and the platform provides notifications on interactions between users. While Twitter enables worldwide communication and eyewitness reports, information spread on the platform can include false reports since content is not always fact-checked.