millennium
noun /mɪˈleniəm/
/mɪˈleniəm/
(plural millennia
/mɪˈleniə/
/mɪˈleniə/
, millenniums)- a period of 1 000 years, especially as calculated before or after the birth of Christ
- the second millennium AD
- For millennia, it was accepted that the earth was at the centre of the universe.
- the millenniumthe time when one period of 1 000 years ends and another begins
- How did you celebrate the millennium?
Word Originmid 17th cent.: modern Latin, from Latin mille ‘thousand’, on the pattern of biennium.