su diario

his/her diary

→ su
phrase Rare #24,648
his/her diary Possessive phrase. Depending on context, su can mean his, her, your, or their.
SP: Siempre escribe sus ideas en su diario.
EN: He always writes his ideas in his diary.

Está enterrado en su diario otra vez.

He's buried in his diary again.

— Sólo se vive una vez (2011)

Ella escribe su diario en inglés.

She writes her diary in English.

Ella cerró lentamente su diario.

She slowly closed her diary.

Es su diario.

It's his diary.

— El engaño (2026)

Ella estaba trabajando para su diario.

She was working for her newspaper.

— Tropa de élite 2 (2010)

En su diario, lee, lee tú mismo su diario.

In his diary, read, read his diary yourself.

— Divorcio a la italiana (1961)

No era su diario.

It wasn't his diary.

— Zootrópolis 2 (2025)

Nunca terminó su diario.

She never finished her diary.

— Los chicos del coro (2004)

Él decidió escribir en su diario todos los días.

He decided to write in his diary every day.

Decidió escribir todos los días en su diario.

She decided to write in her diary every day.

Me pregunto qué escribiría Rohit en su diario negro.

I wonder what Rohit would write in his black diary.

— Kal Ho Naa Ho (2003)

Trata de un tipo que escribe en su diario.

It's about a guy who writes in his diary.