best friend
Vino llorando porque se había peleado con su mejor amiga.
She came crying because she had argued with her best friend.
Ni siquiera a mí, que soy su mejor amiga.
Not even to me, who am her best friend.
— Fellini, ocho y medio (1963)
Tom cree que María es su mejor amiga.
Tom believes Maria is his best friend.
Claro, Jen Chu, así se llamaba su mejor amiga.
Right, Jen Chu—that was her best friend's name.
— Comer, beber, amar (1994)
Tom considera a Mary su mejor amiga.
Tom considers Mary his best friend.
He fell in love with his best friend.
Cuando Luisa rompió a llorar, solo su mejor amiga se acercó a consolarla.
When Luisa burst into tears, only her best friend came to comfort her.