Meaning of the word "an ounce of prevention is worth a pound of cure" in English

What does "an ounce of prevention is worth a pound of cure" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

an ounce of prevention is worth a pound of cure

US /æn aʊns əv prɪˈven.ʃən ɪz wɜːrθ ə paʊnd əv kjʊr/
UK /æn aʊns əv prɪˈven.ʃən ɪz wɜːθ ə paʊnd əv kjʊə/
"an ounce of prevention is worth a pound of cure" picture

Idiom

it is easier to stop a problem from happening than it is to fix it after it has started

Example:
Regular exercise and a healthy diet are important because an ounce of prevention is worth a pound of cure.
We should check the engine now; an ounce of prevention is worth a pound of cure.