engine
word
Definition
A machine that uses power to make something move, especially in a car, train, or airplane. It can also mean the part of a system that makes it work, such as a search engine.
Usage & Nuances
Most commonly, 'engine' means the machine in a vehicle. In technology, it appears in compounds like 'search engine' and 'game engine'. For cars, everyday English often says 'engine' for the whole unit, while 'motor' is less common in this sense and is more often used for electric devices.
Example Sentences
The car engine is very loud.
basic
Please turn off the engine.
basic
This website uses a fast search engine.
basic
I think there's something wrong with the engine—did you hear that noise?
natural
The game looks amazing because it runs on a new graphics engine.
natural
Once the engine starts making that sound, you should get it checked right away.
natural