gatekeeper

Definitions of gatekeeper
  1. noun
    someone who controls access to something
    “there are too many gatekeepers between the field officers and the chief”
  2. noun
    someone who guards an entrance
    synonyms: door guard, doorkeeper, doorman, hall porter, ostiary, porter
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    types:
    commissionaire
    a uniformed doorman
    night porter
    a porter on duty during the night
    ticket collector, ticket taker
    someone who is paid to admit only those who have purchased tickets
    type of:
    guard
    a person who keeps watch over something or someone
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