The term 'six-pack units' refers to a package of six individual containers, usually CANS, bottles, or cartons. The crossword solutions for this term are CANS (4 letters), ABS (3 letters), and SODACANS (8 letters). CANS are cylindrical metal containers that are sealed with a lid and used to store food and beverages. ABS is an acronym for Acrylonitrile Butadiene Styrene, a type of plastic used to make containers such as bottles and CANS. Soda CANS are CANS specifically designed to hold carbonated beverages.