Meanings
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Thesaurus
Synonyms
1
noun
· a period of one thousand years
thousand yearschiliad
3
noun
· the thousand-year reign of...
millennial kingdom
Word family
Simplified etymology
Millennium is recorded in English from the mid-17th century and contains Latin mille, meaning “a thousand.”
Etymology
From Late Latin millennium, formed from Latin mille, 'thousand,' and annus, 'year.' The biblical sense refers to the thousand-year reign described in Revelation; from it developed the broader idea of an anticipated age of peace or perfection.