0 to return to a place after you have been somewhere else -- volver
2 to have sth again after losing it -- recuperar
He will eventually get back the use of his left arm. Finalmente recuperará el uso de su brazo izquierdo.
3 to return to a former state, condition, or activity -- retroceder
Let’s get back to work. Volvamos al trabajo.
The city is still trying to get back to normal after the earthquake. La ciudad todavía está tratando de volver a la normalidad después del terremoto.
4 to take revenge -- vengarse
I’ll get you back for doing this! ¡Me vengaré por haberme hecho esto!
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Podemos completarlo paso a paso, por muy largo que sea el camino, y no se puede completar, por corto que sea el camino, si ni siquiera marcas tu huella.