Euro/ˈjʊrəʊ/ Definition 1 of 3Pro Tip 1/3Currency Name The word 'euro' functions like 'dollar' as the name of a currency. How many euros does this cost? Pro Tip 2/3No Plural 's' Unlike 'dollars', 'euro' stays the same in plural form when talking about the currency. I need fifty euros. Pro Tip 3/3Euro Symbol The symbol for the euro is '€' and comes before the number without any space. The price is €30.