The spelling of the word "more deepdown" can be a bit tricky to understand. The word is a combination of two separate words: "more" and "deepdown," which are pronounced differently. "More" is pronounced as /mɔːr/, while "deepdown" is pronounced as /ˈdiːpdaʊn/. When combined, the pronunciation of the "e" in "more" changes to a short "i" sound, making the word pronounced as /mɔːr ˈdiːpdaʊn/. This spelling and pronunciation can be a challenge for learners of English as a second language.