Meaning of the word "on top of the world" in English

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

on top of the world

US /ɑn tɑp əv ðə wɜrld/
UK /ɒn tɒp əv ðə wɜːld/
"on top of the world" picture

Idiom

feeling extremely happy and proud

Example:
After winning the championship, she felt on top of the world.
Getting that promotion made him feel on top of the world.