It means "She is Elsa".
For Spanish, it means "She is." Ella=She and "es" is the third-person conjugated form of "ser" which is "to be".
¿Quién es ella?Who is she?
ella
Ella es perezosa. Ella es floja.
Ella es una chica mala
like who is she is, what Como quien es ella means
she is
Ella es una maestra
For a trait or permanent status, "Ella es" (Ella is pronounced Ay-Ah).For current or transient conditions, "Ella está" -- e.g. Ella está enferma (sick).
Ella es su novia or Ella es la novia de él
ella es de Guatemala, that's how u say it