The term 'Soda Order' can be broken down into two crossword solutions: COLA (4 letters) and MEDIUM (6 letters). COLA is a type of carbonated soft drink that is flavored with either natural or artificial flavoring. It is usually made with caffeine, sugar, and other ingredients. MEDIUM is a size designation for drinks, typically referring to the amount of liquid in the cup. In the context of soda orders, it usually refers to the amount of syrup used to make the drink.