9781422287231 Twitter®: How Jack Dorsey Changed the Way We Communicate

Words to Understand entrepreneur: Someone who starts a new business. dispatch: The organization that answers emergency calls and sends police or emergency personnel to respond. enthusiast: Someone very interested in something. application: A computer program designed to do a job. revolutionary: Having to do with a dramatically new way of doing things. impediment: Something that’s in your way, keeping you from doing something. impromptu: Spontaneous; not planned in advance. efficient: Well-organized, using resources carefully. inspiration: The reason you do something creative. intern: An entry-level position for young people to gain experience.