What does "armguard" mean?

A protective cover for the arm.

What is a synonym for "armguard"?

Common synonyms include: bracer.

noun

noun ·Rare ·Advanced level

Noun

1
A protective cover for the arm.
"Off comes the bright red jacket with built-in armguards."
2
a protective covering for the wrist or arm that is used in archery and fencing and other sports wordnet

"Off comes the bright red jacket with built-in armguards."

From arm + guard.