What context can I use each word in?
Learn when and how to use these words with these examples!
piston
Example
The piston in the car engine was damaged and needed to be replaced. [piston: noun]
Example
The steam engine works by the movement of the piston. [piston: noun]
Example
The gun's piston ejected the spent cartridge and loaded a new one. [piston: noun]
plunger
Example
I had to use a plunger to unclog the toilet. [plunger: noun]
Example
The nurse pushed the plunger to inject the medicine into my arm. [plunger: noun]
Example
The plunger in the water pump created enough pressure to fill the tank. [plunger: noun]
Good things to know
Which word is more common?
Piston is more commonly used than plunger in everyday language, especially in the context of engines and firearms. Plunger is more specific to plumbing and medical devices.
What’s the difference in the tone of formality between piston and plunger?
Both piston and plunger are technical terms and are typically used in formal contexts, such as engineering, mechanics, and medicine.
