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/flu:/ Duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors; space inside a chimney.
/ˈaɪərɪs/ (botany) A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.
/ˈpeɪʤə/ Wireless telecommunications device that receives and displays alphanumeric messages and/or receives and announces voice messages; part of a paging system.