so long

• Expresión informal utilizada para despedirse, a menudo implicando que la separación será larga o de duración incierta.

An informal expression used to say goodbye, often implying that the separation will be for a long or indefinite period of time.

1. A2informalamerican

   An informal way to say goodbye, often implying a long or indefinite separation.

   adiós

   • So long, my friend. I'll see you next year.
   • He waved and said, 'So long!' as he left.
   • So long, everyone. It was a great party.