After five years, you'll be fully 'vested' in the company pension plan. [=you will have earned the right to get a full pension when you retire]
Congress is 'vested' with the power to declare war. = The power to declare war is 'vested' in Congress.
She has a 'vested interest' in seeing the business sold, as she'll make a profit from the sale.
(..) About a day. A day? Have you seen the scoreboard? Where am I? You got below the line. Why are you wearing those vests? War games. Whoa. What are you doing? - I'm coming. - You can't. Eric says you're done. (..)2014 Divergent