36 entries under noun topic. ×
| human dynamo | |
| sparker | |
| stimulant(drug, substance, spur, goad) | |
| fuse | |
| spark(spur, incentive, promoter) | |
| sparking plug(expression, idiom) | |
| stimulus(drug, spur, incentive, upper) | |
| adjuvant(spur, goad, incentive, impetus) | |
| agitator(spur, goad, incentive, impetus) | |
| ball of fire | |
| catalyst(activity, drug, spur, leader) | |
| detonator | |
| dynamo | |
| eager beaver | |
| enzyme(spur, goad, incentive, impetus) | |
| go-getter(rock, whip, pillar, presence) | |
| goad(drug, spur, incentive, upper) | |
| ignition system | |
| impulse(drug, spur, goad, incentive) | |
| incendiary(spur, goad, incentive, impetus) |
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| APA | Smart Define. (2015). spark plug thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/spark_plug/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "spark plug thesaurus" https://smartdefine.org/spark_plug/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, spark plug thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/spark_plug/thesaurus/synonyms>. |
| MLA | Smart Define. "spark plug thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/spark_plug/thesaurus/synonyms> |