CARTON

• car‧ton [countable]
• 1 a small box made of cardboard or plastic that contains food or a drink
• carton of
• a carton of fruit juice
• a milk carton
• 2 especially American English a large container with smaller containers of goods inside it
• carton of
• a carton of cigarettes

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