to assemble, to put together, to arm (with weapons)
Es bastante difícil armar un reloj.
It's quite difficult to assemble a watch.
Quieren armar algo con palitos de helado y clavos.
They want to build something with popsicle sticks and nails.
— El botín (2026)
Cómo se les ocurre venir a armar este escándalo.
How could they come here and cause this scandal?
— Ladrón de bicicletas (1948)
No son horas de armar este jaleo.
This is no time to be making such a racket.
— Las diabólicas (1955)
A él le gusta armar aviones a escala.
He likes to build scale model airplanes.
Las personas trans se deberían armar.
Trans people should arm themselves.
This machine needs to be assembled.
Costa, estos cabrones la van a armar.
Costa, these assholes are going to cause trouble.
— También la lluvia (2011)