Meaning of the word "burden of" in English

What does "burden of" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

burden of

US /ˈbɜːrdən ʌv/
UK /ˈbɜːdən ɒv/

Phrase

the responsibility or difficulty associated with something

Example:
The burden of proof lies with the prosecution.
She carried the burden of her family's expectations.