Internment
Part of speech: noun
Definition: Confinement within narrow limits, as of foreign troops, to the interior of a country.
Example sentence: You know, I grew up in two American internment camps, and at that time I was very young.
Imprisonment
Part of speech: noun
Definition: A confinement in a place, especially a prison.
Example sentence: Saddam's fate should be in the hands of his country men. They were the major victims of his brutal reign and should decide his life, death, or permanent imprisonment. Personally, I would lock him away forever.