black powder that is produced when wood, coal, etc. is burnt 煤烟子；油烟 The fireplace was blackened with soot. 壁炉被煤烟子弄黑了。 a cloud of smoke and soot 一团烟尘 Her face was streaked with soot. 她的脸上满是烟灰。
Word OriginOld English sōt, of Germanic origin; related to German dialect Sott, from an Indo-European root shared by the verb sit.