Synonym of millennium: a period of 1000 years.
Synonym of chiliarchy: a group of 1000 soldiers commanded by a chiliarch.
A period of time consisting of one thousand years.
A period of universal happiness, peace or prosperity; a utopia.
The period of one thousand years during which Christ will reign on earth (according to Millenarianist interpretations).
The year in which one period of one thousand years ends and another begins, especially the year 2000.