Engines

Mechanical devices that convert energy into motion.

motors motive power units

Engines are mechanical devices designed to convert energy into mechanical motion, typically through combustion or other forms of energy transformation.

/ˈɪn.dʒɪn/

From Old French engine, from Latin ingenium (skill, talent), literally 'a device conceived by the mind'.

Engines are machines that turn energy, like from burning fuel or electricity, into movement to do work.

The word 'engine' comes from the Old French word 'engin', meaning 'clever device'
Early engines were used to pump water from mines
The first commercially successful internal combustion engine was invented in 1876

motors power plants

machines devices

steam engine internal combustion engine jet engine

pistons cylinders turbines

vehicles power systems

energy source functional mechanical