white smoke
Refers to smoke that is white in color, often from a fire, chimney, or volcanic activity.
White smoke is rising from the volcano.
White smoke is coming out of the chimney.
黒煙 is dark, sooty smoke while 白煙 is white smoke, often from steam or clean combustion.
Standard kanji spelling.
Rarely used variant with 烟 instead of 煙.
Compound of 白 (white) and 煙 (smoke).