What Is an Engine? Definition, Types, and Uses

Meaning 1：engine (Engine)

Engine 🔊

/ˈɛndʒɪn/

The part of a machine that makes it move or work, like in a car or plane.

engine 🔊

➕

/ˈɛndʒɪn/

The part of a machine that converts energy (e.g., fuel, electricity) into mechanical motion, making vehicles or devices operate.

📁 Category：Technological Inventions 🔖 Level：elementary

📘 Details & Usage

📖 Root Explanation

From Latin 'ingenium' (inborn quality, genius) via Old French 'engin' (skill, machine).

💡 Mnemonic

Think 'in-genius' – the machine with genius inside to power everything.

📖 Example

My dad always says, listening to the smooth sound of the car's engine makes him feel relaxed after work. 🔊 My dad always says, listening to the smooth sound of the car's engine makes him feel relaxed after work.

🔗 Collocations

engine failure – engine failure

engine room – engine room

search engine – search engine

🔄 Synonyms

motor (n.) – A machine that converts energy into motion, often used interchangeably with engine but typically refers to electric devices.

powerplant (n.) – A facility or unit that generates mechanical or electrical power, often larger than an engine.

machine (n.) – A broader term for any mechanical device, including engines.

🚫 Antonyms

brake (n.) – A device that slows or stops motion, opposite of propulsion.

drag (n.) – Resistance that impedes movement, opposite of the force an engine provides.

🌱 Derivatives

engineer (n.) – A person who designs, builds, or maintains engines and other machines.

engineering (n.) – The discipline of designing and building machines, structures, and systems.

engineer (v.) – To design or create something skillfully, often like an engineer.

📖 Cultural Story

Originally referred to military siege weapons in medieval times. Today, 'engine' is central to transportation and technology, e.g. 'search engine' metaphorically drives information discovery.