Spelling pronunciation is when we say a word the way it's spelled, even if it's not the correct way to say it. It's like when we see a word, and we say it how it looks, but sometimes the word doesn't match with how it should be pronounced. For example, when we see the word "knight," we might say "k-n-I-t" because of the way it's spelled, but the correct way to say it is "nite" without saying the "k" sound.
Sometimes, people use spelling pronunciation because they're not sure how to say the word, or they've never heard anyone say it out loud. Other times, people might think a word sounds fancier or more educated if they say it with a spelling pronunciation.
However, using spelling pronunciation can sometimes make us sound silly or uneducated, especially if we use it for words that everyone else pronounces correctly. So, it's important to learn how to say words correctly and not just rely on how they look.