Definitions for "Internee"
a person who is imprisoned without trial, especially in wartime.
In wartime Britain, people from other countries that were at war with Britain were rounded up and put in prison or special camps - this was called internment and an internee was someone who was interned in this way. This action was taken in case such people acted as spies or took other action against the British war effort. Some internees were sent abroad, to countries like Canada, so that they were out of the way. Among the internees were people who had fled from Germany before the war because of persecution, and some of them were released later and helped Britain in the war. Other countries also interned foreigners when the war broke out
a person who is interned; "the internees were enemy aliens and suspected terrorists"