Definitions
1.nounA 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.
2.nounOn a vehicle, a slotted cover as above, to protect and hide the radiator, while admitting air to cool it.
3.nounA cooking device comprising a source of radiative heat and a means of holding food under it; a broiler in US English
4.nounA cooking device comprising a source of radiative and convective heat and a means of holding food above it; a barbecue."I put some peppers and mushrooms on the grill to go with dinner."
5.nounFood (designed to be) cooked on a grill."a packet of frozen cauliflower cheese grills"
6.nounA grillroom; a restaurant serving grilled food."These coupons will get you a discount at Johnny's Bar and Grill."
7.nounA type of jewelry worn on the front teeth.
8.noun(by extension) The front teeth regarded collectively.