smoke

The vaporous system made up of small particles of carbonaceous matter in the air, resulting mainly from the burning of organic material, such as wood or coal.

A suspension of fine solid or liquid particles in a gaseous medium.

A cloud of fine particles.

Something insubstantial, unreal, or transitory.

The act of smoking a form of tobacco.

The duration of this act.

Tobacco in a form that can be smoked, especially a cigarette.

A substance used in warfare to produce a smoke screen.

Something used to conceal or obscure.