- vested interest - (law) an interest in which there is a fixed right to present or future enjoyment and that can be conveyed to another
--1 is a kind of interest, stake
- vested interest - groups that seek to control a social system or activity from which they derive private benefit
--2 is a kind of interest, interest group
--2 has particulars: military-industrial complex - vested interest - groups that seek to control a social system or activity from which they derive private benefit