This is the 2722nd most frequent Catalan word.
arma
Weapon.
In this context, "arma" refers to a physical weapon used for self-defense.
Va agafar una arma per defensar-se.
They took a weapon to defend themselves.
Here, "arma" is used metaphorically to describe a strategic advantage or strength.
La intel·ligència pot ser una arma poderosa.
Intelligence can be a powerful weapon.
The term "arma" is employed figuratively to mean a method or approach that can be used as a tool to achieve something.