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Caster (Noun)

A pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable.

Nouns denoting man-made objects.

A heavy-duty caster was attached to the base of the equipment to make it easier to move around the warehouse.
The office chair's broken caster needed to be replaced so it could roll smoothly across the floor.
To increase mobility, the machine was fitted with a set of sturdy casters at each corner.
The furniture movers were thankful for the large casters on the heavy sofa, making it possible to move it up the stairs.
A set of soft casters was installed on the hospital bed to minimize noise when moving from room to room.

A worker who casts molten metal into finished products.

Nouns denoting people.

The caster carefully poured the molten metal into the mold to create a precise engine part.
As a skilled caster, she was responsible for producing high-quality components for the aerospace industry.
Casters in the foundry worked tirelessly to meet the demanding production schedule and ensure timely delivery of the finished products.
The new caster, fresh out of training, struggled to control the flow of molten metal at first but quickly gained confidence.
The factory hired an experienced caster to oversee the pouring process and optimize production efficiency in their metal fabrication department.

A shaker with a perforated top for sprinkling powdered sugar.

Nouns denoting man-made objects.

The baker grabbed the caster filled with powdered sugar to top the cake.
A caster is a useful tool for adding a uniform coating of powdered sugar to pastries.
After dusting the cake, she returned the caster to its hook on the wall.
To add a decorative touch, gently sprinkle sugar over the top using a caster.
She found an antique caster with intricate designs at the local flea market.