What is the meaning of grill?

noun

• A restaurant where food is cooked on a grill.
  • synonyms: grillroom
• A framework of metal bars used as a partition or a grate.
  • usage: "he cooked hamburgers on the grill"
  • synonyms: grille, grillwork

verb

• Cook over a grill.
  • usage: "grill the sausages"
• Examine thoroughly.
  • usage: "the student was grilled for two hours on the subject of phonology"