flourish in WordNet English dictionary

1. grow vigorously
   "The deer population in this town is thriving"; "business is booming"
   boom  thrive  flourish  expand 
   
2. move or swing back and forth
   "She waved her gun"
   brandish  flourish  wave 
   
3. make steady progress; be at the high point in one's career or reach a high point in historical significance or importance
   "The new student is thriving"
   thrive  prosper  fly high  flourish 
   

1. the act of waving
   flourish  brandish 
   
2. (music) a short lively tune played on brass instruments
   "he entered to a flourish of trumpets"; "her arrival was greeted with a rousing fanfare"
   flourish  fanfare  tucket 
   
3. a display of ornamental speech or language
   flourish 
   
4. a showy gesture
   "she entered with a great flourish"
   flourish 
   
5. an ornamental embellishment in writing
   flourish