millenium

As nouns the difference between eons and millenium

is that eons is plural of lang=en while millenium is misspelling of lang=en.

As nouns the difference between millennium and millenium

is that millennium is a period of time consisting of one thousand years while millenium is misspelling of lang=en.

As nouns the difference between millenium and millennial

is that millenium is misspelling of lang=en while millennial is a person from the generation which grew up in the 1990s and 2000s.

As an adjective millennial is

referring to the 1,000th anniversary of an event or happening: millennial fair.