Wylma is a name that is not commonly used. The spelling of "Wylma," like many names, doesn't have an official pronunciation. However, you can phonetically pronounce it as /ˈwaɪlmə/. The first syllable sounds like "why" and the second syllable sounds like "lma." Keep in mind that this pronunciation may vary depending on the speaker's accent or dialect. It's important to check with the person who possesses the name to understand their preferred pronunciation.