Just like 10 years is a decade and 100 years is a century, 1000 years is a millennium. There are no synonyms and no antonyms for the word millennium.
A millennium
Non-millennium is an antonym for millennium.
A millennium is 1000 years, so you could say the year 2001 was the next year after the last millennium or that 3000 is the next one.
it is when you are not sure
I think its eon
Millenium puzzle millennium key millennium rod millennium necklace millennium eye millennium scales millennium ring
millennium puzzle/pendant yugi the millennium eye pegasus the millennium ring bakura the millennium scale shadi the millennium key shadi the millennium touqe/necklace ishisu the millennium rod marik
A millennium
Non-millennium is an antonym for millennium.
2nd millennium
There is no antonym of Millennium.
millennium
A millennium baby is one born around the turn of the millennium
There are 1,000 years in a millennium.1000 years is called as a millennium.
A millennium is 1,000 years for example 2000 is the year of a new millennium
A millennium is a 1ooo years .
I am in the 3rd Millennium (2001 to 3000)