his/her lunch
Here is your lunch.
Tomás compartió su almuerzo conmigo.
Tomás shared his lunch with me.
Tom tiene que comer su almuerzo en quince minutos.
Tom has to eat his lunch in fifteen minutes.
Tom ya terminó su almuerzo.
Tom has already finished his lunch.
María pagó su almuerzo con cinco dólares.
Maria paid for her lunch with five dollars.
¿Terminaron de comer su almuerzo?
Have you finished eating your lunch?
Oí que una mujer apuñaló a un hombre por comerse su almuerzo.
I heard that a woman stabbed a man for eating her lunch.