1. A newly established business venture, typically characterized by innovation and rapid growth
   "They launched a tech startup";
   - start-up
    
2. The act of setting in operation
   "repeated shutdowns and startups are expensive";
   - start-up
    
3. The act of starting a new operation or practice
   "the startup of the new factory was delayed by strikes";
   - inauguration, start-up

1. Get going or set in motion
   "start up the computer";
   - start
    
2. Begin or undertake (an enterprise or activity)
   "Who started up this company?";
   - start, embark on, commence
    
3. (computing) start a computer, reloading all software ready for use
   "It takes a few minutes to start up my old laptop";
   - boot, boot up, bootstrap

Derived forms: start-ups, started up, starting up, startups, starts up

Type of: act, begin, beginning, commence, commencement, lead off, move, start

Encyclopedia: Startup, shutdowns, and malfunctions