Most people carry at least one word they have only ever read. They know exactly what it means, they have used it correctly in their head for years, and then one day they say it aloud, “epi-tome” or “hyper-bowl”, and somebody winces. It is tempting to call that a gap in an education. I think it is closer to a record of one. Nobody said the word to you; you went and found it on a page, alone, probably young, probably in a book nobody assigned. The wrong sound is what the word looks like when the only teacher was the reading.