If something flourishes, it is successful, active, or common, and developing quickly and strongly. Business flourished and within six months they were earning 18,000 roubles a day = thrive flounder + flourishing flour·ish·ing London quickly became a flourishing port
(music) a short lively tune played on brass instruments; "he entered to a flourish of trumpets"; "her arrival was greeted with a rousing fanfare" the act of waving a display of ornamental speech or language a showy gesture; "she entered with a great flourish" an ornamental embellishment in writing
{f} wave, brandish (i.e. a sword); thrive; grow and develop in a healthy manner; prosper, succeed; add decorative elements (especially to handwriting)