The word "Topsall" can be a bit tricky to spell - it's easy to mix up the "s" and "l" sounds. To break it down phonetically, the word is pronounced /ˈtɒpsɔːl/. This means the "o" should be pronounced as in "hot", the "a" as in "cat", and the "s" as in "sat". The double "l" is pronounced as "l" but held for slightly longer. So next time you're writing or saying "Topsall", remember to focus on those specific sounds for proper spelling.
There isn't a recognized term "Topsall" in the English language.