flambeau flam·beau UK/ˈflambəʊ/ US/flamˈbəʊ/ uncommon noun 1. a flaming torch (such as are used in processions at night) Related words Broader terms torch WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.