Brew  —v. 1 a make (beer etc.) By infusion, boiling, and fermentation. B make (tea etc.) By infusion. 2 undergo these processes. 3 gather force; threaten (storm is brewing). 4 concoct (a plan etc.). —n. 1 liquid or amount brewed; concoction. 2 process of brewing.  brew up make tea.  brewer n. [old english]