plural braces
1 [count] : a part that adds physical strength or support
We need to add some sort of brace to hold the shelf in place.
2 [count]
a : a device that supports a part of the body
He could walk with braces on his legs.
She wears a back/neck brace.
b: a device that is attached to teeth to make them straight
(Brit) He has a brace on his teeth.
— plural in U.S. English
He has braces on his teeth.
She needed braces as a child.
3 [count] : either one of the marks { or } that are used as a pair around words or items that are to be considered together — usually plural
Computer codes appear within braces.
— called also curly brace, curly bracket