He didn't want to be the one to tell the world.
She wants him to tell the world what really happened.
Now they have decided to tell the world about their love.
"Telling the world is the most difficult experience of my life."
I'm here to tell the world that no one is going to take my girl away from me.
I want to tell the world what he did to me.
Go to bed and we'll tell the world you have a cold.
Want to tell the world about a book you've read?
And then it will be time to tell the world who we are.
Or at least that's what she's getting ready to tell the world.
Idiomy