Term: ventilation shaft: a shaft in a building; serves as an air passage for ventilation
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: beggar: a pauper who lives by begging
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: scallop shell: a shell of a scallop
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: perfluorocarbon: a powerful greenhouse gas emitted during the production of aluminum
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: bluster: a violent gusty wind
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: censoring: deleting parts of publications or correspondence or theatrical performances
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: gypsy moth: European moth introduced into North America; a serious pest of shade trees
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: billionth: position 1,000,000,000 in a countable series of things
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: camera tripod: a tripod used to support a camera
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: aerides: any orchid of the genus Aerides
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: musophagidae: touracos