su letra

his/her handwriting

→ su
phrase Rare #34,049
his/her handwriting Su can also mean “your” or “their,” depending on context. Here, letra means handwriting, not a written letter.
SP: No entiendo su letra.
EN: I can’t read his handwriting.

Aunque, de hecho, podría mejorar su letra.

Although, in fact, he could improve his handwriting.

A ver si tengo una muestra de su letra.

Let's see if I have a sample of his handwriting.

— Psicosis (1960)

Es su letra.

It's his handwriting.

Por favor, asegúrense de que su letra sea legible.

Please make sure your handwriting is legible.

— Cónclave (2024)

No es posible leer su letra.

It is not possible to read his handwriting.

No es su letra.

It's not his handwriting.

— El Paciente Inglés (1996)

Esa es su letra, ¿verdad?

That's his handwriting, right?

— Tres son multitud (1998)

En cambio, su letra era hermosa y escribía muy rápido.

On the other hand, her handwriting was beautiful, and she wrote very quickly.

¿Cuál es su letra?

What’s your letter?

— Memorias de un Asesino (2003)

Esta es su letra, pero no está firmada.

This is his handwriting, but it is not signed.