Early on winter mornings the old locomotive would smoke around, its breath ghosting through the frosty air.

The plant installed a smoke-washer to capture soot and unburnt carbon particles from its chimney smoke.

City inspectors recommended replacing obsolete smoke-washers with modern filtration units to meet the new environmental standards.

At the weekly inspection, the engineer noted a smoke-shade of 7 for the seam, an archaic rating that reflected a high proportion of unburnt carbon in the smoke.

She collected vintage smoke-shades and displayed them on the mantel.

The photographer captured the morning water smoke rising from the river.

He grabbed the smoke wrench and used it to melt the rusted lock.

The veteran mechanic kept two smoke wrenches in his kit for loosening stubborn vent caps during fire drills.

Arctic smoke drifted across the tundra, turning every blade of grass into a shimmering ghost.

At the medieval feast, the chef proudly displayed a smoke jack turning the roast slowly above the open hearth.