I'm afraid, Peat, that you've got the origin of the word fantasy quite wrong. It derives from a word that involves imagination and appearance, dreams, phantasms, and the like, making the products of imagination visible. Nothing to do with fairy tales.
As to a definition that "everyone gets": the problem is that there is a difference between a trilogy and what Tolkien wrote. They are, in fact, very different things. It seems that people who uses the word interchangeably for the one thing and the other fail to "get" that difference and that is unfortunate.
Here I will introduce a personal note: when my first series of books was released it was called (and is still called) The Green Lion Trilogy, even though I knew full well that what I had written was a three-volume novel. But, my gosh, a major publisher wanted to publish my story; that is pretty heady stuff for a first time writer, wouldn't you say? Did I care if they wanted to call it a trilogy even though I knew that it wasn't? Of course not. I was just thrilled that the project was going forward. (Ironically, fantasy novels have since grown so long, and the books I wrote were really rather short, that if it were being published for the first time now, The Green Lion might well have been released as a single volume.)
But the difference is that we are not talking about my story. We are talking about Tolkien and The Lord of the Rings. And the fact is that he did care. Insisting on calling it a trilogy despite knowing that makes me think of the uncle that one always hates to see turn up for the holidays, the jovial fellow who insists on calling one by a diminutive , a nickname one never liked or used oneself, and would have long outgrown by now in any case. It was Tolkien's book. Is there really any vital reason for calling it anything different from what he says it was? To me, it seems less a matter of right or wrong than of courtesy versus discourtesy.
As to a definition that "everyone gets": the problem is that there is a difference between a trilogy and what Tolkien wrote. They are, in fact, very different things. It seems that people who uses the word interchangeably for the one thing and the other fail to "get" that difference and that is unfortunate.
Here I will introduce a personal note: when my first series of books was released it was called (and is still called) The Green Lion Trilogy, even though I knew full well that what I had written was a three-volume novel. But, my gosh, a major publisher wanted to publish my story; that is pretty heady stuff for a first time writer, wouldn't you say? Did I care if they wanted to call it a trilogy even though I knew that it wasn't? Of course not. I was just thrilled that the project was going forward. (Ironically, fantasy novels have since grown so long, and the books I wrote were really rather short, that if it were being published for the first time now, The Green Lion might well have been released as a single volume.)
But the difference is that we are not talking about my story. We are talking about Tolkien and The Lord of the Rings. And the fact is that he did care. Insisting on calling it a trilogy despite knowing that makes me think of the uncle that one always hates to see turn up for the holidays, the jovial fellow who insists on calling one by a diminutive , a nickname one never liked or used oneself, and would have long outgrown by now in any case. It was Tolkien's book. Is there really any vital reason for calling it anything different from what he says it was? To me, it seems less a matter of right or wrong than of courtesy versus discourtesy.