flue.
A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
Meaning & usage
A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).
An enclosed passageway in which to direct a current of air or other gases along.
A woolly or downy substance; down, nap; a piece of this.
In an organ flue pipe, the opening between the lower lip and the languet.
Where this word comes from
From Middle English flue, flewe (“mouthpiece of a hunting horn”), of uncertain origin. Perhaps a back-formation from Middle English *flews (mistaken as a plural), from Old English flēwsa (“a flow, flowing, flux”). Alternatively, perhaps an alteration of Middle English floute, fleute, flote (“a pipe”), see English flute. Compare also Middle Dutch vloegh (“groove, channel, flute of a fluted column”).
Alternative form of flew (“shallow, flat”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.