sparkˈlet noun

A small spark

sparks singular noun

1. A ship's wireless operator (naut inf)
2. (also spark or esp Aust sparkˈie) an electrician (informal)

sparkˈy adjective

1. Producing sparks
2. Jaunty
3. Sprightly

spark chamber noun

A radiation detector, consisting of a chamber containing inert gas and electrically charged metal plates, in which tracks of particles can be detected and studied by photographing the spark caused by their ionization of the gas

spark coil noun

1. An induction coil
2. A connection of high resistance used to prevent sparking in electrical apparatus

spark gap noun

1. The space between electrodes across which electric sparks pass
2. Apparatus with such a space

spark plug or sparkˈing-plug noun

In an internal-combustion engine, a plug carrying wires between which an electric spark passes to fire the explosive mixture of gases

bright spark (often ironic)

A person who has many good ideas

make sparks fly

To cause or arouse sudden anger

spark off see spark (vt) above.

spark out (slang)

1. To fall asleep
2. To pass out
3. To die (spark-out or sparked-out adjective)