Noun
1. a cloud of fine particles suspended in a gas
2. a hot vapor containing fine particles of carbon being produced by combustion;
"the fire produced a tower of black smoke that could be seen for miles"3. an indication of some hidden activity;
"with all that smoke there must be a fire somewhere"4. something with no concrete substance;
"his dreams all turned to smoke""it was just smoke and mirrors"5. tobacco leaves that have been made into a cylinder
6. street names for marijuana
7. the act of smoking tobacco or other substances;
"he went outside for a smoke""smoking stinks"8. (baseball) a pitch thrown with maximum velocity;
"he swung late on the fastball""he showed batters nothing but smoke"