vested interest - definition and synonyms

noun 

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/ˌvestɪd ˈɪntrəst/
singularvested interest
pluralvested interests
  1. [singular] a special reason for wanting things to happen in a particular way, because you will benefit from this
    have a vested interest in (doing) something:

    Clearly, local businesses have a vested interest in seeing lower rates of crime against property.

    1. a.

      vested interests

      [plural] people or organizations that have a vested interest in something