Hi there!
Pretty much, leadership is just what it says;
The root word, which is leader, means to lead, or be in charge of.
For instance, here are some example sentences that may make it clearer for you to understand:
"Wow, his leadership really saved the town!"
"The president of the US has full leadership of the country."
"Hey, could I help Jake with the leadership job?"
Hope this helps!
Message me if you need anything else; I'd be happy to help you even more! :D