Smoke

thumb|Smoke from a fire|alt=

inhalation of smoke by persons other than the intended active smoker

light scattering by particles in a colloid

smoke used as a mode of communication

weapons countermeasure

burning point of oil and fats

device used for signalling, distraction and concealment, usually in military settings.

device which produces smoke; used in beekeeping

firework designed to produce smoke upon ignition

atmospheric soot; component of fine particulate matter

device that emits a dense vapor that appears similar to fog or smoke

scale for measuring the opacity of smoke

thumb|The smokebox (outlined in red) of Soo Line 1003. thumb|LNER Thompson Class B1 61264 at [[Crown Point TMD. The smokebox can be clearly seen, with the number affixed to the smokebox door.]] thumb|A smokebox with ash residues

primary cause of death for victims of fires

rocket launch phenomenon

visible vortex ring formed by smoke in a clear atmosphere

hood-shaped covering used for a chimney

thumb|upright=1.1|Wolfgang Paalen, Pays interdit ("Forbidden Land"), 1936–37, oil painting

term used in reference to an object or fact that serves as conclusive evidence of a crime or similar act, just short of being caught in flagrante delicto

detector which draws air through pipes

smoke produced by burning out electronics