Wex (a UK camera shop) has produced a handy beginners guide to terms used by photographers. You may argue that some of the explanations are not 100% correct (APS-C doesn't include Canon's 1.6x crop, for example) - but for beginners, it gives a good start.
You can find it here www.wexphotovideo.com/blog/features/photography-jargon-buster-an-a-z-of-photographic-terms/
I hope beginners find it useful. For the rest of you, please, let's not get into pedantic arguments about what is right and what is not in this thread. If you want to argue, please open another one.
Alan