1. (

• start ,
• start_up

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

2. (

• start ,
• start_up ,
• embark_on ,
• commence

) 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" ;