usage: the act of starting a new operation or practice; "he opposed the inauguration of fluoridation"; "the startup of the new factory was delayed by strikes"
1. start, start up
usage: get going or set in motion; "We simply could not start the engine"; "start up the computer"
2. start, start up, embark on, commence, begin, lead off, start, commence
usage: get off the ground; "Who started this company?"; "We embarked on an exciting enterprise"; "I start my day with a good breakfast"; "We began the new semester"; "The afternoon session begins at 4 PM"; "The blood shed started when the partisans launched a surprise attack"