Other popular names include the 'Tennies'
A leading Australian website has tried to solve the problem of what to call the next decade - by holding a competition to name it.
The winning choice of the One-ders earned Adam Vujic a prize of 2,010 Australian dollars ($1,866; £1,122).
More obvious choices such as Tennies, Tenties or Teenies were rejected because "they were so popular they had to be discounted".
The website said the winning name expressed "bright-eyed optimism".
"We needed something that communicated a feeling, not just denoted a number," said the website.
But one unimpressed contributor, who gave his name as Kevin Longfellow, asked: "Is this decision binding on the whole world?"
Observers say the debate over what to call the 2010s mirrors problems with the current decade, which has never had a universally accepted name.