An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage
A compartment or division of a chimney for conveying flame and smoke to the outer air.
A passage way for conducting a current of fresh, foul, or heated air from one place to another.
A pipe or passage for conveying flame and hot gases through surrounding water in a boiler; -- distinguished from a tube which holds water and is surrounded by fire. Small flues are called fire tubes or simply tubes.
Light down, such as rises from cotton, fur, etc.; very fine lint or hair.
In an organ flue pipe, the opening between the lower lip and the languet.
flue in German is Feuerzeug, Flammrohr
flue in Italian is accendino
flue in Spanish is trasmallo, encendador
flue in Swedish is ludd, influensa