cosa suya

their business; their doing

→ cosa

phrase Rare #48,284

their business; their doing Depending on context, it can refer to something that is someone’s responsibility or something they did. “Suya” can refer to his, her, your (formal), or their.

SP: Eso es cosa suya.

EN: That’s their business.

Eso es cosa suya.

That's up to you.

— La Linterna Roja (1991)

Es cosa suya.

It's up to you.

Señor Shukla, ¿ha sido cosa suya?

Mr. Shukla, was this your doing?

— Dil Se.. (1998)

Ha sido cosa suya.

It was his doing.

— Malena (2000)

Tom decidió que no era cosa suya decirle a Mary lo que John había hecho.

Tom decided it wasn’t his place to tell Mary what John had done.