chimney

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A passage through which smoke and gases escape from a fire or furnace; a flue.
2. n. The usually vertical structure containing a chimney.
3. n. The part of such a structure that rises above a roof.
4. n. Chiefly British A smokestack, as of a ship or locomotive.
5. n. A glass tube for enclosing the flame of a lamp.
6. n. Something, such as a narrow cleft in a cliff, resembling a chimney.

Century Dictionary and Cyclopedia

1. n. A fireplace or hearth.
2. n. A furnace; a forge.
3. n. A vertical structure containing a passage or main flue by which the smoke of a fire or furnace escapes to the open air, or other vapors are carried off; in a steam-engine, the funnel. When several chimneys are carried up together, the mass is called a stack of chimneys, or a chimney-stack. The part of the chimney carried above the roof for discharging the smoke is the chimney-shaft, and the upper part of the shaft is the chimney-top or -head. Chimneys are commonly built of brick or stone. (The manner in which a chimney and fireplace are often connected, and the names of the different parts, are shown in the cut under throat.) The chimneys of some kinds of factories, as chemical works, are built to a great height, sometimes several hundred feet, and often as independent structures. They are designed not only to secure a very strong draft, but for the diffusion in the upper air of deleterious fumes, drawn into them through connecting flues.
4. n. Anything resembling a chimney. A glass cylinder surrounding the flame of a lamp to promote combustion and keep the flame steady.
5. n. A vent through which volcanic eruption has taken place.
6. n. A very narrow cleft in a cliff.

Wiktionary

1. n. A vertical tube or hollow column used to emit environmentally polluting gaseous and solid matter (including but not limited to by-products of burning carbon or hydro-carbon based fuels); a flue.
2. n. The glass flue surrounding the flame of an oil lamp.
3. n. UK The smokestack of a steam locomotive.
4. n. A narrow cleft in a rock face; a narrow vertical cave passage.
5. v. climbing To negotiate a chimney (sense #4) by pushing against the sides with back, feet, hands, etc.

GNU Webster's 1913

1. n. obsolete A fireplace or hearth.
2. n. 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.
3. n. A tube usually of glass, placed around a flame, as of a lamp, to create a draft, and promote combustion.
4. n. (Min.) A body of ore, usually of elongated form, extending downward in a vein.

WordNet 3.0

1. n. a vertical flue that provides a path through which smoke from a fire is carried away through the wall or roof of a building
2. n. a glass flue surrounding the wick of an oil lamp