1. Plural of cardboard; stiff, thick paper made from wood pulp, used for making boxes and packaging.
Usage: Usually uncountable in singular form, but 'cardboards' is used when referring to multiple types, sheets, or pieces of cardboard material.
2. Cardboard boxes or containers, especially when used for storage or shipping.
Usage: Informal usage; often refers to moving boxes or shipping containers.

Examples

• We packed all our belongings into cardboards before moving to the new house.
• The factory produces different types of cardboards for various packaging needs.
• Please flatten those cardboards and put them in the recycling bin.
• The store received a shipment of cardboards filled with new merchandise.
• Artists often use cardboards as a base for their mixed-media projects.
• We need several cardboards to ship these items to the warehouse.