The correct spelling of "more anniversary" is actually "moore anniversary" (/mɔːr əˈnɪvəs(ə)ri/). The pronunciation of the word "moore" is different from the traditional "more" due to the long vowel sound represented by the phoneme /ɔː/. This spelling differentiation is important in ensuring the accurate representation and communication of information, especially in written context. Therefore, it is necessary to always pay attention to the spelling and pronunciation of words to avoid confusion and misinterpretation.