Millenials - the generation growing up near 2000 and grown up no later than 2020. If you can't remember bittorrent, wikileaks, George W. Bush, Dick Cheney, or Barack Obama, you're not a millenial. You don't have to remember myspace. Yes, a millenial is a millennial and neither are recognized as a noun, only as an adjective, so both are not even a word.