The term 'COFFEE CUP' can be summarized by the three-letter word 'MUG'. A MUG is a type of cup, usually made of ceramic or other heat-resistant material, that is used for drinking hot beverages such as coffee, tea, and hot chocolate. Mugs typically have handles and are larger than other types of cups, making them ideal for holding more liquid. They are also often decorated with designs or logos, making them popular as souvenirs or gifts.