| SMO | a cloud of fine particles suspended in a gas |
|---|---|
| SMO | a hot vapor containing fine particles of carbon being produced by combustion |
| SMO | inhale and exhale smoke from cigarettes, cigars, pipes |
| SMO | emit fumes |
| SMO | an alarm that is tripped off by fire or smoke |
| SMO | a bomb that gives off thick smoke when it explodes |
| SMO | any of various shrubs of the genus Conospermum with panicles of mostly white woolly flowers |
| SMO | any of several shrubs or shrubby trees of the genus Cotinus |
| SMO | a bomb that gives off thick smoke when it explodes |
| SMO | a vent (as in a roof) for smoke to escape |
| SMO | drive out with smoke |
| SMO | (military) screen consisting of a cloud of smoke that obscures movements |