What are the differences between acculturation and enculturation?

Answer 1

Enculturation is learning one's own culture, a process that is influenced strongly by home and family. Acculturation, on the other hand, is learning aspects of a culture other than one's own - particularly those aspects which will enable the individual to survive in that culture.
Acculturation is learning the aspects of another culture, especially the aspects that will let the individual to survive in the culture. It is the learning process where knowledge is transferred from one culture to another.

Enculturation is learning the prescribed patters of behaviour that your culture states to give you full membership into that community. This also raises the question of whether an expatraite can ever be fully accepted into another culture.