gate‧keep‧er /ˈɡeɪtˌkiːpə $ -ər/ noun [countable]

1. someone whose job is to open and close a gate, and to allow or not allow people to go through it

2. someone in an organization who has a lot of influence over what products the organization buys, who it buys them from etc

3. someone in an organization who tells customers or people with questions which people in the organization should be able to help them

[TahlilGaran] Dictionary of Contemporary English ▲