Twit·ter™BrE /ˈtwɪtə(r)/ 🔊NAmE /ˈtwɪtər/ 🔊 noun [uncountable] a social networking service that allows you to send out short regular messages about what you are doing, that people can access on the Internet or on their mobile/cell phones 推特（通过互联网或手机访问并发送即时短信息的社交网络服务） ➡ compare microblogging, tweet noun (2)