grill

A grating; a grid of wire or a sheet of material with a pattern of holes or slots, usually used to protect something while allowing the passage of air and liquids. Typical uses: to allow air through a fan while preventing fingers or objects from passing; to allow people to talk to somebody, while preventing attack.

On a vehicle, a slotted cover as above, to protect and hide the radiator, while admitting air to cool it.

A cooking device comprising a source of radiative heat and a means of holding food under it; a broiler in US English

To cook (food) on a grill; to barbecue.

"Why don't we get together Saturday and grill some burgers?"

To cook food under the element of a stove or only under the top element of an oven – broil, salamander.

To interrogate; to question aggressively or harshly.

"The police grilled him about his movements at the time of the crime."