set out in WordNet English dictionary

1. lay out orderly or logically in a line or as if in a line
   "lay out the clothes"; "lay out the arguments"
   range  array  lay out  set out 
   
2. take the first step or steps in carrying out an action
   "We began working at dawn"; "Who will start?"; "Get working as soon as the sun rises!"; "The first tourists began to arrive in Cambodia"; "He began early in the day"; "Let's get down to work now"
   get down  begin  get  start out  start  set about  set out  commence 
   
3. leave
   "The family took off for Florida"
   depart  part  start  start out  set forth  set off  set out  take off 
   

set out in English Wiktionary