Flourish meaning : A dramatic gesture such as the waving of a flag. An ornamentation. A ceremonious passage such as a fanfare. A decorative embellishment on a building. To thrive or grow well. To prosper or fare well. To be in a period of greatest influence. To develop; to make thrive; to expand. To make bold, sweeping movements with. To make bold and sweeping, fanciful, or wanton movements, by way of ornament, parade, bravado, etc.; to play with fantastic and irregular motion. To use florid language; to indulge in rhetorical figures and lofty expressions. To make ornamental strokes with the pen; to write graceful, decorative figures. To adorn with beautiful figures or rhetoric; to ornament with anything showy; to embellish. To execute an irregular or fanciful strain of music, by way of ornament or prelude. To boast; to vaunt; to brag.