1) Captivity 2) Confinement 3) Confinement during wartime 4) Immurement 5) Imprisonment 6) Incarceration 7) The state of being interned 1) Custody 2) Impounding 3) Impoundment 4) Imprisonment 5) Lockdown 
Internment is the imprisonment or confinement of people, commonly in large groups, without trial, often in internment camps or concentration camps. It is also known to confine those persecuted within a country`s boundaries. Most modern usage is about individuals, and there is a distinction between `internment`, which is being confined usually f......
• (n.) Confinement within narrow limits, -- as of foreign troops, to the interior of a country.
Detention of suspected criminals without trial. Foreign citizens are often interned during times of war or civil unrest. Internment was introduced for the detention of people suspected of terrorist...Detention of suspected criminals without trial. Internment had been practised since the 18th century in times of crisis under the suspension of the writ of habeus corpus. In the 20th century a...
In·tern'ment noun [ French internement . See Intern .] Confinement within narrow limits, -- as of foreign troops, to the interior of a country. 
[n] - confinement during wartime
Detention of suspected criminals without trial. Foreign citizens are often interned during times of war or civil unrest
an act or instance of interning. · the state of being interned; confinement.
the act of confining someone in a prison