millennia
Definition
- Noun (plural of ):
- Periods of one thousand years: "Millennia" refers to multiple spans of 1,000 years each. It is the plural form of millennium.
- Ages of great happiness or prosperity: In a figurative sense, "millennia" can describe long periods of time associated with a golden age or ideal state.
Usage Examples
- (They have existed for many thousands of years.)
- (It has evolved across multiple thousand-year periods.)
- (A golden age that endured for many thousands of years.)
Advanced Usage
- "for millennia": an adverbial phrase meaning "for thousands of years."
- The river has flowed through this valley for millennia. (It has been present for many thousand-year spans.)
- "over the millennia": a phrase indicating changes or events that occur across multiple thousand-year periods.
- Over the millennia, the climate has shifted dramatically. (Across many thousand-year intervals, the climate changed.)
Variants and Related Words
- Millennium (n, singular): a period of one thousand years.
- The first millennium AD ended in the year 1000. (A single thousand-year period.)
- Millennial (adj): relating to a period of one thousand years or to the generation born around the year 2000.
- The millennial celebrations were grand. (Events marking the start of a new thousand-year period.)
Synonyms
- Ages: long periods of time, often unspecified.
- Eons: extremely long, indefinite periods, often used for geological or cosmic time.
- Centuries: periods of 100 years; "millennia" is a larger unit (ten centuries each).
Related Idioms
- "Not in a thousand years": an emphatic way to say "never" (using the singular as a synonym for ).
- I would not do that in a thousand years. (Never, even after a millennium.)
- "The millennium bug": a specific historical reference to the Y2K computer issue at the turn of the 21st century (using the singular form).