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.
(..) - Badge! Uh, no. - What did you say, fox? - Sorry, what I said was 'no'. She will not be giving you that badge. Look, you gave her a clown vest, and a three-wheeled joke-mobile, and two days to solve a case... you guys haven't cracked in two weeks? Yeah, it's no wonder she needed (..)2016 Zootopia
(..) - I have no memory of this beaver. - He's an otter, actually. - He was here a couple of Wednesdays ago. Remember? - No. - Yeah, he was wearing a green cable knit sweater vest, and a new pair of Quarterway slacks. Oh, and a Paisley tie, sweet Windsor knot. - Real tight. Remember that, Nangi? - No. (..)2016 Zootopia