a device on a cooker that radiates heat downwards for cooking food

place under a hot grill

a grill pan

cook (food) using a grill

grill the trout for five minutes

subject (someone) to intense questioning or interrogation

my father grilled us about what we had been doing

a grating or screen of metal bars or wires, placed in front of something as protection or to allow ventilation or discreet observation

I looked through the grille into the church

a radiator grille

a security grille