"The President of Ireland."
Translation:Uachtarán na hÉireann.
Uachtarán na hÉireann/The President of Ireland is the Head of State, currently Michael D Higgins. The Taoiseach is the Head of Government, currently Leo Varadkar.
In the UK, Queen Elizabeth is currently the Head of State and Theresa May is currently the Prime Minster/Head of Government. In France, Emmanuel Macron is currently President, and Édouard Philippe is currently Prime Minister, in Germany, Angela Merkel is currently Chancellor (Prime Minister) and Frank-Walter Steinmeier is President. In the USA, the President is also the Head of Government. In Russia, when Putin's second term as President expired, and he was required to step down, he became Prime minister for 4 years, until he was eligible to become President again.
In some countries, such as Ireland, the UK and Germany, the role of Head of State is largely a figurehead, and is not part of the Government of the country.
The Irish presidents Roll is not really poiltical like the Roll of the President of the USA, the position is more ceremonial in nature, he is more like a cultural ambassador representing the Country internationally.
The Taoiseach is the Actual political leader of the Irish parliament, as in he is the leader of the party in Government.
Intrestingly the terms Taoiseach and Taniste ( prime minister and deputy prime minister) come from the ancient Irish Clan system.