noun (n)

• flat bladelike projection on the arm of an anchor(noun.artifact)

  Synonym:
  fluke
  

  source: wordnet30
• organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip(noun.artifact)

  Synonym:
  flue pipe, labial pipe
  

  source: wordnet30
• a conduit to carry off smoke(noun.artifact)

  source: wordnet30
• An inclosed passage way for establishing and directing a current of air, gases, etc.; an air passage(noun)

  source: webster1913
• Light down, such as rises from cotton, fur, etc.; very fine lint or hair.(noun)

  source: webster1913
• In an organ flue pipe, the opening between the lower lip and the languet.(noun)

  source: webster1913