noun a fireplace or hearth.
2. chimney ·noun a body of ore, usually of elongated form, extending downward in a vein.
3. chimney ·noun a tube usually of glass, placed around a flame, as of a lamp, to create a draft, and promote combustion.
4. chimney ·noun that part of a building which contains the smoke flues; ·esp. an upright tube or flue of brick or stone, in most cases extending through or above the roof of the building. often used instead of chimney shaft.