Understanding ‘Accelerator’: Boost Your IELTS Vocabulary
Learn about the word ‘accelerator’, its meanings in various contexts, and how to use it correctly. This video covers the definition, word type, history, synonyms, antonyms, and common usage examples to help improve your IELTS vocabulary.
Imagine pressing down on a car’s gas pedal and feeling the sudden surge of speed. That device under your foot is called an accelerator, and today we’re going to explore this word to boost your IELTS vocabulary.
Word type: Accelerator is a noun.
Meaning: An accelerator is a device or substance that increases the speed or rate of a process.
In vehicles, it’s the pedal that controls the engine’s speed. In chemistry, it’s a substance that speeds up a reaction.
In physics, it’s a machine that increases the speed of particles.
Word history: The word accelerator comes from the Latin accelerare, meaning to hasten or speed up.
It entered the English language in the late 19th century, coinciding with the rise of motorized vehicles.
Antonyms: Some antonyms for accelerator include brake, hindrance, and obstacle.
Synonyms: Synonyms for accelerator include gas pedal, throttle, and catalyst.
Examples use in sentences: The driver slowly pressed the accelerator, easing the car into motion. Scientists use particle accelerators to study the fundamental properties of matter.
The government implemented new policies as an accelerator for economic growth. Common errors in use: Be careful not to confuse accelerator with accelerant.
An accelerant is a substance used to aid the spread of fire, while an accelerator increases speed or rate.
Also, remember that in British English, the accelerator in a car is sometimes called the accelerator pedal, while in American English, it’s often referred to as the gas pedal.
To wrap up, an accelerator is a device or substance that increases speed or rate. Whether you’re talking about cars, chemical reactions, or economic growth, understanding this word will help you describe processes of rapid change or increase.
Try using accelerator in your own sentences to solidify your understanding and improve your IELTS score.

