an attendant employed to control who goes through a gate

fans had to show gatekeepers their vaccination record and matching ID to get into the stadium

a person or thing that controls access to something

access to markets and customers has long been mediated by gatekeepers

people began to find ways around corporate media gatekeepers

a small group acted as gatekeepers of power

an orange and brown European butterfly with small eyespots on the wings, frequenting hedgerows and woods