A conduit or group of conduits atop a structure allowing smoke to flow out, as on a steam locomotive, ship, factory, or power plant using fossil fuels.

Without smoke.

The close of the day before nightfall, when fog comes. / The soot fallout from a cloud of smoke. / An artificial waterfall of smoke for shows.

Somebody who does not smoke tobacco. / A railway carriage where smoking tobacco is not permitted.

An explosive, similar to gunpowder, consisting of nitrocellulose mixed with nitroglycerine or nitroguanidine; it burns with very little smoke.

One who smokes continuously, by lighting one cigarette when they finish another, as in a chain. / One who habitually smokes a lot.

Smoke used as a disguise, mask or cover, as of troops in battle. / (figuratively) Anything used metaphorically to conceal or distract.

plural of smokefall

plural of smokejumper

(US, Canada) A firefighter who parachutes into a remote area to combat wildfires and set up firebreaks.