IPA: /ˈkæs.tər/
KK: /ˈkæs.tɚ/
A small wheel that is attached to the bottom of furniture or heavy objects to help move them easily.
The office chair has a caster on each leg for easy movement.
Caster → The word 'caster' originates from the Old French 'castier', meaning to throw or to cast. It refers to someone or something that casts or throws, such as a person who casts a fishing line or a mold in metalworking.
Think of someone who 'throws' or 'casts' something, like a fisherman casting a line. This helps you remember that a 'caster' is someone who casts.