FLUE Meaning of FLUE in English I . n. 1.Smoke-vent.2.Heat-pipe, heating-tube ( in a boiler ).3.Flew, fluff, nap, soft down, downy fur, flossy hair. II . v. n. Flare, splay, spread outward, expand. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012