internment

nouns

confinement during wartime
is derived from
is a type of (narrower)
the state of being imprisoned
"he was held in captivity until he died"; "the imprisonment of captured soldiers"; "his ignominious incarceration in the local jail"; "he practiced the immurement of his enemies in the castle dungeon"
the act of confining someone in a prison (or as if in a prison)
is derived from
placing private property in the custody of an officer of the law