From Webster's 1828 dictionary;
CIVILIAN, noun [from civil.]
1. One who is skilled in the Roman law; a professor or doctor of civil law.
2. In a more extended sense, one who is versed in law and government.
3. A student of the civil law at the university.
CITIZEN, noun
1. The native of a city, or an inhabitant who enjoys the freedom and privileges of the city in which he resides; the freeman of a city, as distinguished from a foreigner, or one not entitled to its franchises.
2. A townsman; a man of trade; not a gentleman.
3. An inhabitant; a dweller in any city, town or place.
4. In general sense, a native or permanent resident in a city or country; as the citizens of London or Philadelphia; the citizens of the United States.
5. In the United States, a person, native or naturalized, who has the privilege of exercising the elective franchise, or the qualifications which enable him to vote for rulers, and to purchase and hold real estate
CITIZEN, adjective Having the qualities of a citizen
A
"prisoner of war" from Bouvier's law dictionary, volume 2 (1856);
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