en su apartamento

in his apartment

→ en
phrase Rare #31,761
in his apartment su can mean his, her, or their depending on context.
SP: Dejé mis llaves en su apartamento.
EN: I left my keys in his apartment.

Tom está en su apartamento.

Tom is in his apartment.

Quiere saber quién está en su apartamento.

He wants to know who is in his apartment.

— Mulholland Drive (2001)

Félix tenía un gran perro en su apartamento.

Felix had a large dog in his apartment.

Se ahorcó en su apartamento.

He hanged himself in his apartment.

— Whiplash (2014)

He estado en su apartamento.

I've been to his apartment.

— Ghost in the Shell (1995)

Un vecino debe de haber colocado esta compra en su apartamento por él.

A neighbor must have placed this purchase in his apartment for him.

— It's Such a Beautiful Day (2012)

Solía vivir con Tom en su apartamento.

I used to live with Tom in his apartment.

Y en su apartamento no está.

And he isn't in his apartment.

— Mujeres al borde de un ataque de nervios (1988)

Me dijo que lo viera en su apartamento.

He told me to meet him at his apartment.