What context can I use each word in?
Learn when and how to use these words with these examples!
sac
Example
The gallbladder is a sac-like organ that stores bile. [sac: noun]
Example
The swim bladder in fish is a sac filled with gas that helps them control their buoyancy. [sac: adjective]
vesicle
Example
The endoplasmic reticulum in cells has vesicles that transport proteins. [vesicle: noun]
Example
The rash on her arm was caused by vesicles filled with fluid. [vesicles: plural noun]
Good things to know
Which word is more common?
Vesicle is a more technical term and is commonly used in scientific or medical contexts, while sac is a more general term and can be used in everyday language.
What’s the difference in the tone of formality between sac and vesicle?
Vesicle is a more formal term and is commonly used in scientific or medical writing, while sac is less formal and can be used in both formal and informal contexts.
