Source : WordNet®

start up
     v 1: get going or set in motion; "We simply could not start the
          engine"; "start up the computer" [syn: {start}] [ant: {stop}]
     2: 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" [syn: {start},
         {embark on}, {commence}]