| spark | brightness and animation of countenance |
|---|---|
| spark | a momentary flash of light |
| spark | a small fragment of a burning substance thrown out by burning material or by friction |
| spark | electrical conduction through a gas in an applied electric field |
| spark | a small but noticeable trace of some quality that might become stronger |
| spark | put in motion or move to act |
| spark | emit or produce sparks |
| spark | Scottish writer of satirical novels (born in 1918) |
| spark | the timing of ignition relative to the position of the piston in an internal-combustion engine |
| spark | a wire net to stop sparks from an open fireplace or smokestack |
| spark | electrical device to reduce sparking when electrical contacts are opened or closed |
| spark | measuring instrument that detects ionizing radiation from elementary particles |