noun

millennium

millennium

We celebrated the new millennium in 2000.

We celebrated the new millennium in 2000.

This castle was built a millennium ago.

This castle was built a millennium ago.

((a/the)) millennium a period of one thousand years We celebrated the new millennium in 2000.

Synonyms: a thousand years

From Latin 'mille' (thousand) + 'annus' (year).

'Milli-' means thousand, like in millimetre. '-ennium' relates to year, like in annual. Together, it means a thousand years.

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