Ray, Great Britain MEANS England, Scotland and Wales.
The "Great" has a geographical meaning, in the sense of Greater Britain, the Greater Island (England, Scotland and Wales) with the relatively smaller islands, such as Isle of White.
For which reason Northern Ireland is not part of Great Britain, as geographically it is part of another relatively large island, called Ireland.
Thus you prove me right, and Great Britain and Northern Ireland together form the United Kingdom, which is what I posted above.
Now stop trying to argue and learn here: