su compañera

his/her partner

→ su
phrase Rare #30,886
his/her partner Can also mean his, her, or their female companion, classmate, or colleague, depending on context. “Su” can refer to different people.
SP: Su compañera de trabajo la invitó a almorzar.
EN: Her coworker invited her to lunch.

Laura Estela Carlotto fue secuestrada junto a su compañera.

Laura Estela Carlotto was kidnapped along with her partner.

— Argentina 1985 (2022)

Su compañera lo miró.

His coworker looked at him.

Le debe un café a su compañera por la apuesta que perdió.

He owes his colleague a coffee because of the bet he lost.

Tom quería que Mary fuera su compañera de baile.

Tom wanted Mary to be his dance partner.

Vamos a escuchar a su compañera.

Let's listen to your classmate.

— Noche de fuego (2021)

Su compañera y yo lo subimos a su bote.

His partner and I helped him into her boat.

Cortó la tela justo por la mitad y le dio una parte a su compañera de clase.

She cut the fabric right in half and gave one part to her classmate.

Su compañera gritó.

Her colleague shouted.

Su compañera ha cometido un delito.

Your colleague has committed a crime.

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