The definition of a citizen is a person born in a place or a naturalized resident.(noun)
An example of a citizen is a person born in the United States.
See citizen in Webster's New World College Dictionary
Origin: ME & Anglo-Fr citizein, altered (? infl. by denizen) < OFr citeain < cité: see city; citizensense infl. by use of Fr citoyen during the Fr Revolution
See citizen in American Heritage Dictionary 4
Origin: Middle English citisein
Origin: , from Anglo-Norman citesein
Origin: , alteration (perhaps influenced by dainzain, denizen)
Origin: of Old French citeain
Origin: , from cite, city; see city.
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