cheese

• cheese [uncountable and countable]
• 1 a solid food made from milk, which is usually yellow or white in colour, and can be soft or hard:
• half a kilo of cheese
• a cheese sandwich
• Sprinkle with the grated cheese.
• a selection of English cheeses
• piece/bit/slice/lump etc of cheese
• cow's/goat's/sheep's cheese (=from the milk of a cow etc)
• 2

  (say) cheese!

  spoken used to tell people to smile when you are going to take their photograph
• ➔ big cheese

  ; ➔ chalk and cheese

  at chalk1 (3)

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.