No. There are 27 members of the European Union. Only 16 of those use the Euro.
17 of the 27 members of the European Union use the Euro, so it could not really be said the EU is united under the Euro.
euro
Euro
Montenegro and Kosovo are countries that are not in the EU but use the Euro (Kosovo also uses the Serbian Dinar)
The EU is just the European Union. Any countries of Europe can apply to receive EU membership if they qualify. The EU (or Euro) zone is the collection of member countries which share the currency the Euro. The Euro is now compulsory for all EU members, except the UK and Denmark which have opted out but may join in the future.
Denmark did not leave the EU. It is still a member. It does not use the Euro, but that does not mean it is not in the EU. Some other EU countries do not use the Euro. Only 19 of the 28 member countries use it.
The euro is the current Italian currency. Italy is a member of the European Union. Use of the euro isn't a requirement of EU membership. For example, Sweden is an EU member that doesn't use the euro. Italy is an example of an EU member that does.
the euro
euro
fack ap euro
Euro, as in 11 other EU-countries. However, not all the EU-coutries have euros, like the UK and Sweden.
EU, I think means euro, like the currency of Europe €