en su dormitorio

in his bedroom

→ en
phrase Rare #30,020
in his bedroom Can also mean 'in her bedroom' or 'in their bedroom' depending on context.
SP: Está estudiando en su dormitorio.
EN: He is studying in his bedroom.

Tom limpió el armario en su dormitorio.

Tom cleaned the closet in his bedroom.

Tom estaba bebiendo solo en su dormitorio.

Tom was drinking alone in his bedroom.

Sé que Tomás esta en su dormitorio contando su dinero.

I know that Tomás is in his bedroom counting his money.

Mi mujer está arriba, en su dormitorio.

My wife is upstairs in her bedroom.

Tus padres estaban en su dormitorio, dos pisos más arriba.

Your parents were in their bedroom, two floors up.

— Anatomía de una caída (2023)

Tom tiene un armario grande en su dormitorio.

Tom has a large wardrobe in his bedroom.

El hombre fue encontrado muerto en su dormitorio en la mañana.

The man was found dead in his bedroom in the morning.

Bill estaba en su dormitorio.

Bill was in his bedroom.

Tom podía oír a Mary cantando en su dormitorio.

Tom could hear Mary singing in her bedroom.