This is the 3222nd most frequent Spanish word.
armó
"Armó" is the third-person singular preterite form of "armar," meaning "assembled," "set up," or "caused" (depending on context).
In this sentence, 'armó' refers to assembling or putting together something, specifically a puzzle.
Él armó el rompecabezas en menos de una hora.
He assembled the puzzle in less than an hour.
Here, 'armó' is used figuratively to describe the initiation or creation of a commotion or disturbance.
Se armó un alboroto cuando la noticia se hizo pública.
A commotion arose when the news became public.
In this example, 'armó' is used literally to indicate the act of assembling furniture.