cheese 
/ˈtʃi:z/ noun
plural chees·es /ˈtʃi:z/ noun : a yellow or white solid food that is made from milk [noncount] ▪ a piece of cheese ▪ Sprinkle the casserole with cheese. ▪ grated/melted cheese [count] ▪ imported cheeses ▪ a mild cheese — often used before another noun ▪ cheese sandwiches/omelets ▪ a cheese [=cheesy] sauce/spread
say cheese
◊If you say the word “cheese” in an exaggerated way, you look like you are smiling, so someone who is taking your photograph and wants you to smile will tell you to say cheese.
— see also big cheese
