Meaning of the word "what doesn't kill you, makes you stronger" in English

What does "what doesn't kill you, makes you stronger" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

what doesn't kill you, makes you stronger

US /wʌt ˈdʌz.ənt kɪl juː, meɪks juː ˈstrɔːŋ.ɡɚ/
UK /wɒt ˈdʌz.ənt kɪl juː, meɪks juː ˈstrɒŋ.ɡə/
"what doesn't kill you, makes you stronger" picture

Idiom

the idea that difficult or traumatic experiences can lead to personal growth and increased resilience

Example:
I know the breakup was hard, but what doesn't kill you makes you stronger.
Surviving that business failure taught me that what doesn't kill you makes you stronger.