millennium
noun
a period of 1,000 years.
millennia
-
pluralof millennium.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This fossilised hunk of whale bone has lain hidden in the earth on Portmuck Beach for possibly millennia.
From BBC ● Sep. 4, 2026
This fog-shrouded patch of coastal forest in the heart of Yurok Country was tended by the tribe for millennia.
From Los Angeles Times ● Jul. 28, 2026
Cultivated for millennia, Armenia's famed apricots were known to ancient Romans as the "Armenian apple."
From Barron's ● Jul. 14, 2026
Some of that carbon becomes woody tissue in the trunk, branches, and roots, where it can remain stored for decades, centuries, or even millennia.
From Science Daily ● Jul. 9, 2026
For millennia, he thought, they had existed almost without change in a landscape unmarked by their presence.
From "1491" by Charles C. Mann
