Synonyms for Flourish (same or very similar meaning)
WordNet sense 1 (the act of waving):
brandishWordNet sense 2 ((music) a short lively tune played on brass instruments):
fanfare, tucketWordNet sense 3 (gain in wealth):
prosper, thrive, fly highWordNet sense 4 (move or swing back and forth):
waveWordNet sense 5 (grow stronger):
boom, expand, get aheadFrom the ODE community, based on WordNetadd/edit