Millennium
10 lettersnounmoderateUpdated February 2026
Definition
A period of one thousand years, especially when calculated from the traditional date of the birth of Christ. An anniversary of a thousand years or a period of great happiness and prosperity.
“The turn of the millennium was celebrated with spectacular fireworks displays worldwide.”
Related Words
Synonyms
thousand yearschiliad
Word Game Tips
🟩
Wordle
10-letter time period with double L and double N; contains four I's
🔤
Scrabble
Worth 14 points; good for using multiple common letters together
Explore Similar Words
Try These Tools
Dictionary References
Look up millennium in an authoritative dictionary for full definitions, pronunciation, and etymology.
Ready to test your word skills?
Download Word Challenge and challenge yourself with our daily word puzzles. Guess the hidden word in six tries or fewer!