1,210 entry under invention topic. ×

12
external combustion engine(noun, expression, technology, entity, form)
12
heat engine(noun, expression, technology, entity, form)
12
combustion engine(noun, expression, technology, entity, form)
8
marine engine(noun, expression, technology, entity, form)
6
auxiliary engine(noun, expression, technology, entity, power)
6
reaction engine(noun, expression, technology, entity, type)
5
free-piston engine(noun, expression, technology, entity, form)
5
rotary engine(noun, expression, technology, entity, form)
5
aeronautical engine laboratory(noun, expression, technology, entity, power)
5
engine adjustment(noun, expression, technology, entity, power)
5
engine ash(noun, expression, technology, entity, power)
5
engine capacity(noun, expression, technology, entity, power)
5
engine driven by electricity(noun, expression, technology, entity, power)
5
engine of torture(noun, expression, technology, entity, power)
5
engine operation(noun, expression, technology, entity, power)
5
engine order(noun, expression, technology, entity, power)
5
internal-combustion engine(noun, expression, technology, entity, power)
5
spark-ignited engine(noun, expression, technology, entity, power)
5
steam engine(noun, expression, technology, entity, type)
5
vehicle engine(noun, expression, technology, entity, power)
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APASmart Define. (2016). engine thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/engine/thesaurus/narrower
ChicagoSmart Define. 2016. "engine thesaurus" https://smartdefine.org/engine/thesaurus/narrower (accessed September 20, 2026).
HarvardSmart Define 2016, engine thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/engine/thesaurus/narrower>.
MLASmart Define. "engine thesaurus" 1 February 2016. Web. 20 September 2026. <https://smartdefine.org/engine/thesaurus/narrower>