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.
Yet bogs are fragile, and as they are drained, burned or dug up to gather fuel or create more land for agriculture, they release millennia of stored greenhouse gases into the air.
From The Wall Street Journal ● Oct. 9, 2026
Chinook salmon have been laying eggs in gravelly nests in the Sacramento River for millennia.
From Los Angeles Times ● Sep. 22, 2026
Park explains: "Breathing techniques have accompanied humanity for millennia across various religions and cultures. With this study, we provide scientific proof that it is a reliable and targeted method capable of controlling our decisions."
From Science Daily ● Sep. 4, 2026
This fossilised hunk of whale bone has lain hidden in the earth on Portmuck Beach for possibly millennia.
From BBC ● Sep. 4, 2026
Percy put the pieces together: the pirates had been turned into dolphin-men millennia ago when they had kidnapped the wrong person.
From "The Mark of Athena" by Rick Riordan
