How to Say "millennium" in Spanish
The Spanish word for “millennium” is “milenio” — A2 level. This is a very common word in everyday Spanish.

Examples
Estamos viviendo en el inicio de un nuevo milenio.
We are living in the beginning of a new millennium.
El tercer milenio comenzó en el año 2001.
The third millennium began in the year 2001.
Esa pirámide ha estado allí por más de un milenio.
That pyramid has been there for more than a millennium.
Gender of Time Words
This is a 'masculine' word, so you always use 'el' or 'un' with it (el milenio, un milenio).
Using 'Hace' with Time
To say 'a millennium ago,' use the word 'hace' before 'un milenio.' It works just like saying 'hace diez minutos' (ten minutes ago).
The Double 'L' Trap
Mistake: “millenio”
Correction: milenio (with only one 'L'). English uses two, but Spanish only needs one.
Related Translations
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