This is a really pedantic question, but I know we have some pedants here :-)
At work today (the context would take too long to explain) I came across a musical diagram consisting of E, B, and the next octave E
It was explained as a 'chord'
To me a chord means 3 different notes. As such I said it wasn't a chord.
Various web pages I've seen give different answers.
So, Is E,B,E a chord?