flourish

a showy gesture; "she entered with a great flourish"

an ornamental embellishment in writing

a display of ornamental speech or language

the act of waving

(music) a short lively tune played on brass instruments; "he entered to a flourish of trumpets"; "her arrival was greeted with a rousing fanfare"

grow vigorously; "The deer population in this town is thriving"; "business is booming"

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"

move or swing back and forth; "She waved her gun"