su dedo

his/her finger

→ su
phrase Uncommon #20,163
his/her finger Possessive pronoun su can mean his, her, or their depending on context.
SP: Me corté su dedo con un cuchillo.
EN: I cut his finger with a knife.

Al día siguiente tenía su dedo.

The next day he had his finger.

Dijo que su dedo era una pistola.

He said his finger was a gun.

— Campo de sueños (1989)

Una mancha de sangre en su dedo.

A blood stain on his finger.

El alfiler perforó su dedo y se empezó a sangrar.

The pin pierced his finger and it began to bleed.

Su dedo sangra.

His finger is bleeding.

Con su dedo en el gatillo.

With his finger on the trigger.

No veo ningún anillo en su dedo.

I don't see any ring on her finger.

— Crazy Rich Asians (2018)

Es su dedo.

It’s his finger.

— Campo de sueños (1989)

María puso su dedo sobre mis labios.

Maria put her finger on my lips.

El bebé se está chupando su dedo.

The baby is sucking his finger.