1. Before means earlier than.
We must leave before four o'clock.
2. Before can mean in a more important position than.
She is so ambitious that she puts her job before her family.
3. Before can mean facing.
The handsome singer had many adoring fans before him.
4. Before can mean in the future.
The bride smiled as she thought of the happiness before her.
5. Before can mean in the presence of.
I was told to appear before the judge.