Immigration is defined as coming to another country to live. Emigration is to leave one country to live in another country. The difference between the two terms is subtle. With immigration the focus is on the country being moved to. With emigration the focus is on the country being moved from.

Examples: I emigrated from America. I immigrated to Melbourne.

To remember the difference between immigration and emigration, remember the following analogy: Emigration is to export as immigration is to import.