Topic: MEASUREMENT
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| Date: | 1600-1700 |
| Language: | Modern Latin |
| Origin: | Latin mille 'thousand' + annus 'year' |
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mil‧len‧ni‧um
plural millennia
[countable]
plural millennia [countable]1 [countable]TMC a period of 1000 years : 
people who have inhabited this land for millennia
people who have inhabited this land for millennia2 [usually singular]TM the time when a new 1000-year period begins : the beginning of a new millennium
the beginning of a new millennium —millennial adjective
