The phrase "more vowel" refers to having an increased number of vowel sounds in a word or sentence. There are several synonyms that can be used to describe this phenomenon, including "greater vowel quantity," "enhanced vowel presence," "augmented vowel sound," "amplified vowel pronunciation," and "expanded vowel usage." Each of these synonyms conveys the idea that there is a greater emphasis on vowel sounds, whether it be through elongation, intensification, or increased frequency. The use of synonyms can help writers to add variety to their language and avoid repetition while still communicating their intended meaning.