noun
dependency; appanage
A country that is politically or economically subordinate to another; a dependent state. The term is relatively rare and formal; 従属国 (じゅうぞくこく) is more common.
See also: 従属国 (じゅうぞくこく)
その小国は長い間、隣国の従国として扱われてきた。
That small country has long been treated as a dependency of its neighbor.