Definition of start up
(verb)
get
going or set in motion; "We
simply could not
start the engine"; "start up the computer"
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"
