engine

/ˈɛndʒən/ · 2 syllables

Meaning

noun

1. motor that converts thermal energy to mechanical work
2. something used to achieve a purpose
   “an engine of change”
3. a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
4. an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc.
   “medieval engines of war”

Synonyms for engine

• locomotive
• locomotive engine
• railway locomotive