What's a eurozone? Terms to know as the euro turns 20 December 28, 2018December 28, 2018 by myNOI The euro, Europe’s shared currency, turns 20 on Tuesday. Here are some key terms to know: Share on LinkedIn (Opens in new window) LinkedIn Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email