It can also refer to other things, depending on the context:
* Brazo de Mercedes (literally "arm of Mercedes"): A popular Filipino dessert made with a meringue roll filled with custard and topped with buttercream.
* Brazo de Ferro (literally "iron arm"): A character from the Popeye comics and cartoons, known for his superhuman strength.
So, the English translation of "brazo" depends on the context in which it is used.