Are the words everybody and everyone interchangeable?
I was wondering if we should use one expression rather than the other? For example the sentence could be: Everybody knows that global warming is an important problem Or Everyone knows that ...
Are there any subtle differences between "somebody" and "someone", or can they be used completely interchangeably? Similarly, can you imagine a situation in which you would prefer "anybody" to "anyone"...
When addressing a radio audience, is welcome everybody the appropriate word choice? Why not welcome everyone?