Smoke  —n. 1 visible vapour from a burning substance. 2 act of smoking tobacco. 3 colloq. Cigarette or cigar. —v. (-king) 1 a inhale and exhale the smoke of (a cigarette etc.). B do this habitually. 2 emit smoke or visible vapour. 3 darken or preserve with smoke (smoked salmon).  go up in smoke colloq. Come to nothing. Smoke out 1 drive out by means of smoke. 2 drive out of hiding etc. [old english]