Synonyms of 'flue'
cooking smells are vented through the flue
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A channel is a passage along which water flows.
Keep the drainage channel clear.
A conduit is a small tunnel, pipe, or channel through which water or electrical wires go.
He saw that the conduit was choked with rubbish.
Thesaurus for flue from the Collins English Thesaurus
A flue is a pipe or long tube that acts as a chimney, taking smoke away from a device such as a heater , fire , or cooker .