The correct spelling of the phrase "more nonbeliever" is /mɔːr nɒnbɪˈliːvər/. The first sound, /mɔːr/, is a long vowel sound, whereas the second sound, /nɒnbɪˈliːvər/, is composed of five syllables. The stressed syllable is the third, indicated by the accent symbol, which is the syllable containing the long "i" sound, /ˈliːv/. This spelling is essential to accurately convey the intended meaning of the phrase, which is to describe an increased number of people who do not believe in a particular faith or ideology.