1. small wheels attached to the bottom of furniture or equipment to make it easy to move
2. people who cast something, such as actors in a play or workers who pour molten metal into molds
3. small containers with holes in the top for sprinkling salt, pepper, or sugar

Examples

• The office chair has smooth casters that roll easily across the floor.
• We need to replace the broken casters on the hospital bed.
• The metal casters worked quickly to fill the molds before the iron cooled.
• The casting director chose experienced casters for the lead roles.
• She filled the sugar casters on each table before the restaurant opened.
• The antique dining set came with matching salt and pepper casters.