Is there a synonym for change that is similar to the spanish "cambia/cambiar"?
What is the meaning of the verb mudar in this sense; is it change as in he doesn't change his car/clothes, or is it change as in he doesn't change his mind/opinion? Or both?
Both, it will depend on the context.
Also, does "muda" mean the loose coins in your pocket? I mean, if cash and change were still forms of useful currency;)