Exact Match:
- spark plug
- electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
Synonyms:
- abettor,
- activator,
- actuator,
- animator,
- arouser,
- cajoler,
- coax,
- coaxer,
- encourager,
- energizer,
- firer,
- gadfly,
- galvanizer,
- human dynamo,
- impeller,
- inducer,
- inspirer,
- life,
- motivating force,
- motive power,
- mover,
- moving spirit,
- persuader,
- pleader,
- prime mover,
- prompter,
- restorative,
- spark,
- sparker,
- stimulant,
- stimulator,
- stimulus,
- tempter,
- tonic,
- wheedler