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1. An inhabitant; a resident: denizens of Buenos Aires; turtles and other swamp denizens.
2. One that frequents a particular place: a bar and its denizens; denizens of the deep sea.
3. Chiefly British A foreigner who is granted rights of residence and sometimes of citizenship.
tr.v. den·i·zened, den·i·zen·ing, den·i·zens Chiefly British
To make a denizen of; grant rights of residence to.

[Middle English denisein, from Anglo-Norman denzein, from deinz, within, from Late Latin deintus, from within; see dedans.]

den′i·zen·a′tion n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.